Bạn nào giải giúp mk vs ak
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41 It is the tornado
42 They are in the village school
43 When the Tornado was coming, a sudden loud whistling could be heard
44 The population of the village is 185
45 They compared it worse than a war zone
VII
46 If she weren't ill, she could come to class
47 The children's mothers are often given flowers on the Women's day
48 Those students, who didn't do their homework, were punished
49 Although it was a bad day, we went out for a picnic
50 I wish our team had played well so we hadn't lost the game
14 Lan asked Thu where she could find the new cartoons
15 Phong asked Lan if their teacher asked them to clean up the room
16 She asked me to give her some money
17 Tam asked Thu if she would be there for five days
18 The students asked their teacher to give them easier homework
19 She asked her husban if they needed some help
20 Lan asked Hoa is she might have a look at her picture
21 Lam asked Lan if their class would take part in that competition
42 rains
43 gives
44 returns
45 will go
46 study
47 would try
48 has just published
49 has traveled
50 wouldn't lose/didn't lose/hadn't lost
51 didn't rain
52 hot
53 Have you ever been - have been
54 could
55 wants - study
56 listening
57 rings
58 took part
59 was spoken
60 do - to learn
I
1 C
2 D
3 D
4 A
5 B
II
6 C
7 A
8 A
9 A
10 D
11 C
12 C
13 C
14 D
15 D
16 D
17 C
18 B
19 C
20 B
III
21 painting => being painted
22 she => bỏ
23 doesn't => isn't
24 at => in
25 didn't => wouldn't
ta muốn làm nắm nhưng mi bợi thêm năm nữa đi nha đợi ta lên lớp 8 ta giải cho
Tần số là số lần dao động của vật trong 1s. Đơn vị Hz
Tần số dao động của vật thứ nhất là: 700:10=70H
Tần số dao động của vật thứ hai là: 9000:300=30Hz
Vật 2 dao động âm chậm hơn và vật 1 phát ra âm cao hơn. Vì tần số dao động của vật 1 > vật 2
1 Lan said she would be busy the day after
2 Nam said he was told to be at school before 7 a.m
3 The teacher said all the homework had to be done carefully
4 She said she didn't buy that book
5 The boys said they had to try their best to win the match
6 Her classmate said Lan was the most intelligent girl in their class
7 Mary told her friend she would expect to see her the next Wednesday
8 The teacher asked me where my father worked
9 A tourist asked how far it was from HCM city to Vung Tau
10 Mrs Brown asked Thu what language she spoke
11 His friend asked him what time his schools began
12 Lan asked Len how much this dress cost
13 She asked me what kind of program I liked best