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6 tháng 10 2021

24. has finished

25. were

26. shortening

27. apply

28. handing

29. not to make

30. to phone

31. to give

1 tháng 3 2021

Change to Gerund or Infinitive Passive1:

4:Roger can't stand people pushing him in queues

=> He ...can't stand being pushed in queues.......

5: The boss wants us to inform him about all the latest developments.

=> He .....wants to be informed about all the latest developments.............

6: James isn't keen on anyone taking his things without asking.

=>He ...isn't keen on being taken his things without asking .................

7: I resent everyone blaming me for the accident.

=> I ..resent being blamed for the accident..................

8: Cynthia loves people to give her flowers

=>Cynthia .....loves being given flowers.............

9: Someone saw him run away.

=> He ...was seen to run away....................

1 tháng 3 2021

dạ cảm ơn ạ

10 tháng 10 2021

1 listening

2 camping

3 to be

4 to speak

5 to pay

6 to meet

7 not trying - to solve

8 being

9 hunting

10 to be

11 working

12 going

13 to do

14 to bring

15 working

16 buying

17 to inform

18 studying

19 to buy

20 to be fed

21 working

10 tháng 10 2021

thankss anh nhiều lắm nha

NV
26 tháng 6 2021

Để hàm bậc 3 có 2 cực trị nằm về 2 phía trục hoành

\(\Leftrightarrow y=0\) có 3 nghiệm pb

\(\Leftrightarrow x^3-\left(2m+1\right)x^2+\left(m+1\right)x+m-1=0\) có 3 nghiệm pb

\(\Leftrightarrow\left(x-1\right)\left(x^2-2mx-m+1\right)=0\)

\(\Leftrightarrow\left[{}\begin{matrix}x=1\\x^2-2mx-m+1=0\left(1\right)\end{matrix}\right.\)

Bài toán thỏa mãn khi (1) có 2 nghiệm pb khác 1

\(\Leftrightarrow\left\{{}\begin{matrix}a+b+c=1-2m-m+1\ne0\\\Delta'=m^2+m-1>0\end{matrix}\right.\)

\(\Leftrightarrow\left\{{}\begin{matrix}m\ne\dfrac{2}{3}\\\left[{}\begin{matrix}m< \dfrac{-1-\sqrt{5}}{2}\\m>\dfrac{-1+\sqrt{5}}{2}\end{matrix}\right.\end{matrix}\right.\)

Có 19 số tự nhiên nhỏ hơn 20 thỏa mãn

30 tháng 6 2021

\(\sqrt{2}\) - \((a)^{2}\)

3 tháng 5 2021

23 interrupting - repeating

24 to be cut - to go

25 giving - to explain

26 asking - telling - to buy

27 to tell - looking

28 being - erupting

29 to inform

30 overhearing

31 going - saying

32 writing - waiting

33 to avoid being

34 giving 

35 to persuade - to agree

36 cleaning - to do

37 shuting - sitting

38 sneezing - sitting

39 talking - to finish

40 to give up jogging

41 stopping - forgetting - to wind

42 to lock - going

43 not to speak

44 behaving

45 to explain - listening

46 smoking 

47 to know

48 to disguise - dressing

49 to wait 

50 showing - to work

51 walking - to catch

52 to understand

8 tháng 7 2021

Friend: Hi. What do you plan to do on the Sunday? Or do we go somewhere to play?

Me: I'm sorry but I have to learn the extra class. How about Saturday?

Friend: Yeah, it's OK. Do you fancy going to the libraly?

Me: That's so boring. I think that's good to have the picnic in the park.

Friend: Great. I will take some foods and water. Should we invite some more friends?

Me: OK. So what time do we go?

Friend: 8 o'clock. Can we go to shopping in the evening?

Me: Pefect! See you soon. Bye

Friend: Goodbye.

 

 

8 tháng 7 2021

Bài đã sửa:

Lan: Hi Ann, do you want to go somewhere on Saturday afternoon?

Ann: No, sorry, I have to do my English project. How about Sunday? 

Lan: Umm.., let me think. I would prefer Sunday morning. In the afternoon I have to take my brother to school.

Ann: Sunday morning will be ok to me. Where do you want to go? Shall we go to the beach?

Lan: Yes, I'd love to. What time, Ann?

Ann: About 8 a.m

Lan: Ok! See you then

xl cô bài kia nhầm đề ak