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Question 42. We can use this bottle once again. A. We can reduce this bottle. B. We can reuse this bottle. C. We can refill this bottle. D. We can recycle this bottle. Question 43. This recycling bin belongs to them. A. This recycling bin is them. B. This recycling bin is their. C. This recycling bin is theirs. D. This recycling bin is they’s. Mark the letter A, B, C or D to indicate the meaningful sentence from the cues given. Question 44. Why/ not/ we/ sing/ English song? A. Why not we sing an English song? B. Why not we sing a English song? C. Why don't we sing a English song? D. Why don't we sing an English song? Question 45. If/ you/ see/ used bottle/ road, what/ you/ do? A. If you see an used bottle in the road, what will you do? B. If you see an used bottle in the road, what do you do? C. If you see a used bottle in the road, what will you do? D. If you see a used bottle in the road, what do you do? Question 46. No/ house/ street/ older/ this one. A. No house on the street is older than this house. B. No house on the street is the older this house. C. No houses in the street is older than this house. D. No house in the street is the older this house. Mark the letter A, B, C or D to reorder the words to make full sentences. Question 47. throw/ environment/ If/ pollute/ will/ you/ it/ the/ the rubbish. A. If it throw the rubbish, you will pollute the environment. B. If you will throw the rubbish, it pollute the environment. C. If you throw the rubbish, it will pollute the environment. D. If it pollute the environment, you will throw rubbish. Question 48. area/ has become/ my/ great/ in/ pollution/ Water/ problem/ a. A. Water in my area pollution has become a great problem. B. Water problem has become a great pollution in my area. C. Water pollution in my area has become a great problem. D. Water pollution has become a great problem in my area. Question 49. effects/ causes/ noise/ What/ of/ the/ are/ pollution? A. What the causes and effects of noise pollution are? B. What are the noise pollution of causes and effects? C. What the noise pollution of causes and effects are? D. What are the causes and effects of noise pollution? Question 50. soil/ I/ do/ on/ pollution/ will/ a/ survey. A. I will do a survey on soil pollution. B. I will do soil pollution on a survey. C. I will survey a do on soil pollution. D. I will do a soil pollution survey on.

0
18 tháng 6 2020

Cảm ơn bạn rất nhiều

18 tháng 6 2020

Linh Tran không có gì :)))

17 tháng 2 2023

If we walk or cycle, we will be healthy

If we use the car all the time, we will make the air dirty

If you reuse paper, you will save trees

If you make noise, your sister will not sleep

If i see a used bottle on the road, i will put it in the bin

1 If we walk or cycle, we will be healthy.

2: If we use the car all the time, we will make the air dirty

3 If you reuse paper, you will save trees

4: If you make noise, you sister won't sleep

5: If I see a used bottle on the road, I will put it in the bin

Choose the letter A, B, C or D to complete the sentences with given wordsQuestion 1: The/ post office/ next/ the hotel.A. The post office is next the hotel.B. The post office next to the hotel.C. The post office is next to the hotel.D. The post office is next on the hotel. Question 2: This shop/ sell/ cheaper things/ that one.A. This shop sells cheaper things than that one.B. This shop sell cheaper things than that one.C. This shop sells cheaper things that one.D. This shop sell cheaper things...
Đọc tiếp

Choose the letter A, B, C or D to complete the sentences with given words

Question 1: The/ post office/ next/ the hotel.

A. The post office is next the hotel.

B. The post office next to the hotel.

C. The post office is next to the hotel.

D. The post office is next on the hotel.

 

Question 2: This shop/ sell/ cheaper things/ that one.

A. This shop sells cheaper things than that one.

B. This shop sell cheaper things than that one.

C. This shop sells cheaper things that one.

D. This shop sell cheaper things that one.

 

Question 3: This street/ so/ narrow/ cars/ can’t/ go past.

A. This street so narrow that cars can’t go past.

B. This street is so narrow cars can’t go past.

C. This street is so narrow that cars can’t go past.

D. This street so narrow cars can’t go past.

 

Question 4: Can/ you/ tell me/ way/ from/ our school/ your house?

A. Can you tell me way from our school to your house?

B. Can you tell me the way from our school your house?

C. Can you to tell me the way from our school to your house?

D. Can you tell me the way from our school to your house?

 

Question 5: Go straight/ and then/ turn/ left. The hotel/ your right.

A. Go straight and then to turn left. The hotel is your right.

B. Go straight and then turn left. The hotel is on your right.

C. Go straight and then turn the left. The hotel is on your right.

D. Go straight and then turn left. The hotel is at your right.

 

Rearrange the sentences to make meaningful sentences

Question 6: at/ My/ is/ 255/ Tran Phu street/ house.

A. My house is at 255 Tran Phu street.

B. My house is 255 at Tran Phu street.

C. My house is Tran Phu street at 255.

D. My house at 255 is Tran Phu street.

 

Question 7: do/ we/ going/ What/ to/ are/ tonight?

A. What we are going to do tonight?

B. What are we going to do tonight?

C. What do we going are to tonight?

D. What do are we going to do tonight?

 

Question 8: convenient/ both/ This apartment/ and/ is/ modern.

A. This apartment both is modern and convenient.

B. This apartment is both and modern convenient.

C. This apartment both modern and is convenient.

D. This apartment is both modern and convenient.

 

Question 9: higher/ building/ This/ that/ is/ than/ one.

A. This is building higher than that one.

B. This building is higher than that one.

C. This building is one than higher that.

D. This building is that one higher than.

 

Question 10: The/ beautiful/ with/ park/ is/ green trees.

A. The park is beautiful with green trees.

B. The park is green trees beautiful with.

C. The park beautiful with is green trees.

D. The park is with beautiful green trees.

 

Rewrite sentences without changing the meaning

Question 11: The store is to the left of the hotel.

A. The hotel is to the right of the store.

B. The hotel is to the opposite of the store.

C. The hotel is to the next of the store.

D. The hotel is to the front of the store.

 

Question 12: No house in this neighborhood is bigger than this one.

A. All house in this neighborhood is bigger than this.

B. This is the biggest house in this neighborhood.

C. All house in this neighborhood is smaller than this.

D. This is the smallest house in this neighborhood.

 

Question 13: Could you show me the way to the airport?

A. Where’s the airport?

B. What’s the airport?

C. When’s the airport?

D. Why’s the airport?

 

Question 14: Ha Long Bay is more famous than Phu Quoc Island.

A. Ha Long Bay is the most famous.

B. Phu Quoc Island is more famous than Ha Long Bay.

C. Ha Long Bay is as famous as Phu Quoc Island.

D. Phu Quoc Island is less famous than Ha Long Bay.

 

Question 15: There are many kinds of fishes in the river.

A. In the river, many kinds of fishes are here.

B. There is no fish in the river.

C. The river has many kinds of fishes.

D. Few kinds of fishes live in the river.

3
4 tháng 12 2019

1c

2a

3c

4d

6a

7b

8d

9b

10a

11a

12b

13a

14d

15c

4 tháng 12 2019

B nha bạn

2 tháng 8 2017

Compete the conversation with the correct form of the verbs in brackets in the present continuous.

Jack: I'm bored.

Nick: Why don't you find something to do?

Jack: What can I do?

Nick: There are lots of things you can do. This is what I (1. do)_______am doing________ this weekend. On Friday evening I (2. meet)_______am meeting________ Jane. We (3.go)________are going_______ to the cinema. Then in Saturday, Tom and I (4. play)_______are playing________ table-tennis. Then we (5. have)______are having_________ lunch with Sam. After lunch, Tom and Sam (6. start)_______are starting________ their new judo classes. I (7. not go)_______am not going________ with them because my dad (8. take)_______is taking________ me to a baseball match.

It's my mum's birthday on Sunday. She (9. not have)_______is having________a big party. We (10. have)_______are having________ lunch at a nice restaurant near our house.

Jack: Wow. You are busy. Can I come with you to the cinema on Friday?

Nick: Of course, you can, Jack.

2 tháng 8 2017

Compete the conversation with the correct form of the verbs in brackets in the present continuous.

Jack: I'm bored.

Nick: Why don't you find something to do?

Jack: What can I do?

Nick: There are lots of things you can do. This is what I (1. do)_______am doing_______ this weekend. On Friday evening I (2. meet)_______am meeting________ Jane. We (3. go)___are going____________ to the cinema. Then in Saturday, Tom and I (4. play)______are playing________ table-tennis. Then we (5. have)_______are having________ lunch with Sam. After lunch, Tom and Sam (6. start)_____are starting__________ their new judo classes. I (7. not go)________am not going_______ with them because my dad (8. take)________is taking______ me to a baseball match.

It's my mum's birthday on Sunday. She (9. not have)________isn't having_______a big party. We (10. have)________are having_______ lunch at a nice restaurant near our house.

Jack: Wow. You are busy. Can I come with you to the cinema on Friday?

Nick: Of course, you can, Jack.

18 tháng 2 2017

Điền câu thích hợp vào đoạn hội thoại

A . I want to recycle it

B. It saves water

C. What for

D. I'll throw it out

E. we'll take it to the recycling center

F. you save fifteen to twenty percent of the water

G. You can reuse it

H.just put it in the closet

I. You put the bottle in the bathroom

J.fill it with water

Conversation A:

A:If you've finished reading the newspaper,....I'll throw it out...

B: No,wait. ...I want to recycle it......

A: Recycle the newspaper? That's a good idea

B: yeah, um, ..just put it in the closet... . When we get a big pile, ....we'll take it to the recycling center.....

A:ok

Conversation B:

A: uh, don't throw away that plastic bottle. ..You can reuse it......

B: An old plastic bottle? ...What for... ?

A:To save water. You put some rocks in the bottle and ...fill it with water.... . The rocks and water make the bottle heavy. ...You put the bottle in the bathroom..... ...ah, in the toilet tank

B: you put it in the toilet tank?

A: Yeah, ..It saves water... . Every time you plush the tank ...you save fifteen to twenty percent of the water.....

B:It saves that much water? wow!

*** Good luck ~ MDia

18 tháng 2 2017

thank you so muchhhhhhhhh

Bài 5. Chọn đáp án thích hợp nhất ( A,B,C hay D) hoàn thành các câu sau: 26. Nam has three cars. The blue car is one of ........ A: his car B: he C: his D: him 27. When you don’t need a light. You should ............ A: switches it off B: switch off it C: switching it off D: switch it off 28. Does Hoa like .....aerobics? Yes. She ..... aerobics every morning. A: does/ does B: doing/ does C: playing/ does D: doing / do 29. My classes start at seven o’clock and .......at...
Đọc tiếp
Bài 5. Chọn đáp án thích hợp nhất ( A,B,C hay D) hoàn thành các câu sau: 26. Nam has three cars. The blue car is one of ........ A: his car B: he C: his D: him 27. When you don’t need a light. You should ............ A: switches it off B: switch off it C: switching it off D: switch it off 28. Does Hoa like .....aerobics? Yes. She ..... aerobics every morning. A: does/ does B: doing/ does C: playing/ does D: doing / do 29. My classes start at seven o’clock and .......at eleven fifteen A: finish B: ends C: close D: both A & B 30. How about going for a picnic this Sunday, Lan? A: Thank you B: That’s a good idea C: Really? D: You’re welcome 31. I am the .......of the two sisters. A: shortest B: more short C: shorter D: shortage 32. I’m thirsty. I’d like a ............of cold water. A: box B: bar C: bottle D: kilo 33. The teacher wants us ...... an English essay now. A: is writing B: to write C: write D: writing 34. My sister can sing English songs well but I ...... A: don’t B: am not C: can D: can’t 35. My mother has ..................... A: a straight long black hair B. straight long black hair C: long black straight hair D. hair straight long black Bài 6. Điền một giới từ thích hợp vào chỗ trống nếu cần. Nếu không cần điền dấu X a. Last summer holiday, we went to Ho Chi Minh City ...(36)...plane. This holiday we go there ...(37)...our own car. b. ... (38)......all the books I have. I like this one ...(39).......best. c. My birthday is ...(40)....November 1 st . Is your birthday ...(41)....November, too? d. My mother often helps me a lot...(42)....my homework, but tonight she is ...(43)..... I have to do it myself. e. The doctor says “ Clean your hands ...(44)... every meal. The dentist says “ Brush your teeth... ..(45)..meals” Bài 7. Cho dạng đúng của các động từ cho trong ngoặc. 46+47. Mum! There ( be) a lot of gray clouds on the sky. It ( rain) ? 48 + 49. Do you know how many teachers your school ( have) ? Sorry! I (not / know). 50+ 51 . How often your mother ( go ) to see the dentist? She never ( go ) to the dentist’s. 52+53. You can ( go) out tonight but you must ( finish) your homework now. 54+55. What you ( do) this summer vacation? We ( visit) Phong Nha cave.
2
18 tháng 9 2017

Bài 5. Chọn đáp án thích hợp nhất ( A,B,C hay D) hoàn thành các câu sau:

26. Nam has three cars. The blue car is one of ........ A: his car B: he C: his D: him

27. When you don’t need a light. You should ............ A: switches it off B: switch off it C: switching it off D: switch it off

28. Does Hoa like .....aerobics? Yes. She ..... aerobics every morning.

A: does/ does B: doing/ does C: playing/ does D: doing / do

29. My classes start at seven o’clock and .......at eleven fifteen A: finish B: ends C: close D: both A & B

30. How about going for a picnic this Sunday, Lan? A: Thank you B: That’s a good idea C: Really? D: You’re welcome

31. I am the .......of the two sisters. A: shortest B: more short C: shorter D: shortage

32. I’m thirsty. I’d like a ............of cold water. A: box B: bar C: bottle D: kilo

33. The teacher wants us ...... an English essay now. A: is writing B: to write C: write D: writing

34. My sister can sing English songs well but I ...... A: don’t B: am not C: can D: can’t 35. My mother has ..................... A: a straight long black hair B. straight long black hair C: long black straight hair D. hair straight long black

Bài 6. Điền một giới từ thích hợp vào chỗ trống nếu cần. Nếu không cần điền dấu X

a. Last summer holiday, we went to Ho Chi Minh City ...(36)BY...plane. This holiday we go there ...IN(37)...our own car.

b. ... (38)...X...all the books I have. I like this one ...(39)...X....best.

c. My birthday is ...ON(40)....November 1 st . Is your birthday ..IN.(41)....November, too?

d. My mother often helps me a lot...(42)...WITH.my homework, but tonight she is ...(43)..... I have to do it myself.

e. The doctor says “ Clean your hands ...(44)...BEFORE every meal. The dentist says “ Brush your teeth... AFTER..(45)..meals” Bài 7. Cho dạng đúng của các động từ cho trong ngoặc.

46+47. Mum! There ( be) a lot of gray clouds on the sky. It ( rain) ?

ARE / IS IT GOING TO RAIN

48 + 49. Do you know how many teachers your school ( have) ? Sorry! I (not / know).

HAS / DON'T KNOW

50+ 51 . How often your mother ( go ) to see the dentist? She never ( go ) to the dentist’s.

DOES YOUR MOTHER GO / GOES

52+53. You can ( go) out tonight but you must ( finish) your homework now.

FINISH

54+55. What you ( do) this summer vacation? We ( visit) Phong Nha cave.

ARE YOU GOING TO DO / AM GOING TO VISIT

18 tháng 9 2017

Bài 5. Chọn đáp án thích hợp nhất ( A,B,C hay D) hoàn thành các câu sau:

26. Nam has three cars. The blue car is one of ........

A: his car B: he C: his D: him

27. When you don’t need a light. You should ............

A: switches it off B: switch off it C: switching it off D: switch it off

28. Does Hoa like .....aerobics? Yes. She ..... aerobics every morning.

A: does/ does B: doing/ does C: playing/ does D: doing / do

29. My classes start at seven o’clock and .......at eleven fifteen

A: finish B: ends C: close D: both A & B

30. How about going for a picnic this Sunday, Lan?

A: Thank you B: That’s a good idea C: Really? D: You’re welcome

31. I am the .......of the two sisters.

A: shortest B: more short C: shorter D: shortage

32. I’m thirsty. I’d like a ............of cold water.

A: box B: bar C: bottle D: kilo

33. The teacher wants us ...... an English essay now.

A: is writing B: to write C: write D: writing

34. My sister can sing English songs well but I ......

A: don’t B: am not C: can D: can’t

35. My mother has .....................

A: a straight long black hair B. straight long black hair C: long black straight hair D. hair straight long black

Bài 6. Điền một giới từ thích hợp vào chỗ trống nếu cần. Nếu không cần điền dấu X

a. Last summer holiday, we went to Ho Chi Minh City ...(36)..by.plane. This holiday we go there ..in.(37)...our own car.

b. ... (38)..of....all the books I have. I like this one ...(39).....x..best.

c. My birthday is ...(40)..on..November 1 st . Is your birthday ...(41)..in..November, too?

d. My mother often helps me a lot...(42)..of..my homework, but tonight she is ...(43)..out... I have to do it myself. e. The doctor says “ Clean your hands ...(44)..before. every meal. The dentist says “ Brush your teeth...after ..(45)..meals”

Bài 7. Cho dạng đúng của các động từ cho trong ngoặc.

46+47. Mum! There ( be) are a lot of gray clouds on the sky. is It going to rain ( rain) ?

48 + 49. Do you know how many teachers your school ( have) has? Sorry! I (not / know).

50+ 51 . How often does your mother ( go ) go to see the dentist? She never ( go ) goesto the dentist’s.

52+53. You can ( go) go out tonight but you must ( finish) finish your homework now.

54+55. What are you going to do( do) this summer vacation? We ( visit) are going to Phong Nha cave.

23 tháng 4 2017

1. There is .................... fuit juice in the bottle. (some / any / a / an)

2. She is thirsty. She'd like .................... drink. (any / a / an / some)

3. Would you like .................... chicken? (a / an / some / any)

4. Are they going to see .................... in Ha Noi. (Cham museum / the citadel / Ngoc Son Temple / Huong Pagoda)

5. We .................... dinner at home every day. (Has / have / are having / is having)

6. .................... you going to visit Hue this Summer? (Do / Does / Are / Is)

7. There is .................... water in the bottle (some / any / a / an)

23 tháng 4 2017

1. There is ....some.... fuit juice in the bottle. (some / any / a / an)

2. She is thirsty. She'd like ...some.... drink. (any / a / an / some)

3. Would you like ....a....... chicken? (a / an / some / any)

4. Are they going to see ....Ngoc Son Temple.......... in Ha Noi. (Cham museum / the citadel / Ngoc Son Temple / Huong Pagoda)

5. We .......have........... dinner at home every day. (Has / have / are having / is having)

6. .......Are.... you going to visit Hue this Summer? (Do / Does / Are / Is)

7. There is .....some........ water in the bottle (some / any / a / an)

Question 5. Breda goes jogging every morning to keep ___________.A. exercise B. trained C. fit D. healthQuestion 6. We have a test on Monday, ___________ I will have to study this weekend.A. and B. but C. so D. becauseQuestion 7.______ causes many breathing problems.A. Fresh air B. Fresher air C. Polluting air D. Polluted airQuestion 8.___________ is a marathon in miles? ~ About 26 miles.A. How often B. How many C. How long D. How wideQuestion 9. The Statue of Liberty is one of the most famous...
Đọc tiếp

Question 5. Breda goes jogging every morning to keep ___________.

A. exercise B. trained C. fit D. health

Question 6. We have a test on Monday, ___________ I will have to study this weekend.

A. and B. but C. so D. because

Question 7.______ causes many breathing problems.

A. Fresh air B. Fresher air C. Polluting air D. Polluted air

Question 8.___________ is a marathon in miles? ~ About 26 miles.

A. How often B. How many C. How long D. How wide

Question 9. The Statue of Liberty is one of the most famous ___________ in the United States.

A. towers B. landmarks C. capitals D. cities

Question 10. They showed a ___________ on global warming called ‘Warming Warning’.

A. documentary B. romance C. comedy D. cartoon

Question 11. We should have______ bins in each classroom.

A. recycling B. recycle C. recycled D. recycles

Question 12. - ‘Can you give me the remote control on the table?’

- ‘___________ Don’t you like this programme?’

A. What? B. You’re welcome. C. Certainly. D. Really?

Question 13. All of the machines will have a special card________. .

A. start B. to start C. starting D. to starting

Question 14. If we ______ all the trees, there will be no more oxygen for us to breathe.

A. cuts B. cut off C. cutting D. cut dowQuestion 5. Breda goes jogging every morning to keep ___________.

A. exercise B. trained C. fit D. health

Question 6. We have a test on Monday, ___________ I will have to study this weekend.

A. and B. but C. so D. because

Question 7.______ causes many breathing problems.

A. Fresh air B. Fresher air C. Polluting air D. Polluted air

Question 8.___________ is a marathon in miles? ~ About 26 miles.

A. How often B. How many C. How long D. How wide

Question 9. The Statue of Liberty is one of the most famous ___________ in the United States.

A. towers B. landmarks C. capitals D. cities

Question 10. They showed a ___________ on global warming called ‘Warming Warning’.

A. documentary B. romance C. comedy D. cartoon

Question 11. We should have______ bins in each classroom.

A. recycling B. recycle C. recycled D. recycles

Question 12. - ‘Can you give me the remote control on the table?’

- ‘___________ Don’t you like this programme?’

A. What? B. You’re welcome. C. Certainly. D. Really?

Question 13. All of the machines will have a special card________. .

A. start B. to start C. starting D. to starting

Question 14. If we ______ all the trees, there will be no more oxygen for us to breathe.

A. cuts B. cut off C. cutting D. cut dow

2
13 tháng 7 2021

Question 5. Breda goes jogging every morning to keep ___________.

A. exercise B. trained C. fit D. health

Question 6. We have a test on Monday, ___________ I will have to study this weekend.

A. and B. but C. so D. because

Question 7.______ causes many breathing problems.

A. Fresh air B. Fresher air C. Polluting air D. Polluted air

Question 8.___________ is a marathon in miles? ~ About 26 miles.

A. How often B. How many C. How long D. How wide

Question 9. The Statue of Liberty is one of the most famous ___________ in the United States.

A. towers B. landmarks C. capitals D. cities

Question 10. They showed a ___________ on global warming called ‘Warming Warning’.

A. documentary B. romance C. comedy D. cartoon

Question 11. We should have______ bins in each classroom.

A. recycling B. recycle C. recycled D. recycles

Question 12. - ‘Can you give me the remote control on the table?’

- ‘___________ Don’t you this programme?’

A. What? B. You’re welcome. C. Certainly. D. Really?

Question 13. All of the machines will have a special card________. .

A. start B.to start C. starting D. to starting

Question 14. If we ______ all the trees, there will be no more oxygen for us to breathe.

A. cuts B. cut off C. cutting D. cut down

13 tháng 7 2021

5.D       6.B     7.C       8.A      9.C      10.D    CÂU ĐÂU

1. We should use reusable bottles ....of plastic ones A.because B.instead C.despite D.however ----------- Điền câu thích hợp vào ô trống A . I want to recycle it B. It saves water C. What for D. I'll throw it out E. we'll take it to the recycling center F. you save fifteen to twenty percent of the water G. You can reuse it H.just put it in the closet I. You put the bottle in the bathroom J.fill it with water Conversation A: A:If you've finished reading the newspaper,...
Đọc tiếp

1. We should use reusable bottles ....of plastic ones

A.because B.instead C.despite D.however

-----------

Điền câu thích hợp vào ô trống

A . I want to recycle it

B. It saves water

C. What for

D. I'll throw it out

E. we'll take it to the recycling center

F. you save fifteen to twenty percent of the water

G. You can reuse it

H.just put it in the closet

I. You put the bottle in the bathroom

J.fill it with water

Conversation A:

A:If you've finished reading the newspaper, .......

B: No,wait. .........

A: recycle the newspaper? That's a good idea

B: yeah, um, ..... . When we get a big pile, .........

A:ok

Conversation B:

A: uh, don't throw away that plastic bottle. ........

B: An old plastic bottle? ...... ?

A:To save water. You put some rocks in the bottle and ....... . The rocks and water make the bottle heavy. ........ ...ah, in the toilet tank

B: you put it in the toilet tank?

A: Yeah, ..... . Every time you plush the tank ........

B:It saves that much water? wow!

(Chắc chắn mới đc lm`)

2
18 tháng 2 2017

câu 1 tự lm

18 tháng 2 2017

Điền câu thích hợp vào ô trống

A . I want to recycle it

B. It saves water

C. What for

D. I'll throw it out

E. we'll take it to the recycling center

F. you save fifteen to twenty percent of the water

G. You can reuse it

H.just put it in the closet

I. You put the bottle in the bathroom

J.fill it with water

Conversation A:

A:If you've finished reading the newspaper, ....D....

B: No,wait. .....A....

A: recycle the newspaper? That's a good idea

B: yeah, um, ...H.. . When we get a big pile, ....E....

A:ok

Conversation B:

A: uh, don't throw away that plastic bottle. ....G....

B: An old plastic bottle? ...C... ?

A:To save water. You put some rocks in the bottle and ...J.... . The rocks and water make the bottle heavy. ....I.... ...ah, in the toilet tank

B: you put it in the toilet tank?

A: Yeah, ..B... . Every time you plush the tank ....F....

B:It saves that much water? wow!