Trong các số sau, số nào là số nguyên tố, số nào là hợp số?

2;9;27;31;77;83;91;97;312.

IV. Rewrite the sentences

23. He said, i must clean the room this afternoon

==>He said

24. Can you swim? She asked me

==>She asked

25. I asked Nga, which book are you reading?

==>I asked

26. I can't visit her village again

==>I wish

V. Complete the second sentence so that it has the same meaning to the one printed before

28.they had had marks because they didn't study their lessons

==>They didn't

29 we can't go out because it is raining

==>We wish

30. Mỹ uncle smoked a lot a year ago,but now he isn't smoke any more

==>My uncle used

31. How long is it since you saw tom?

==>When

32. The doctor advised me not to work to hard

==>The doctor suggested

33. If Joe doesn't change his away, he will end up in prison

==> Unless

VI. Complete the second sentence so that it has the same meaning to the one printed before

32. Susan isn't working hard for her exam

==> I wish

33. We no longer write to each other very often

==>We used

1. Complete the second sentence so that it has a similar meaning to the first one,using the word given. Do not change the world given. You must use between two and five words

A. I'm really excited about the holiday. (Looking)

==>I..............the holiday

B I've got to reduce the number of sweets I eat. (Down)

==>I must................the number of sweets I eat

C. Why don't you start doing a sport? (Take)

==>Have you thought about..........a sport?

Đ. His parents raised him very strictly. (Up)

==> His parents.........very strictly

E. Can you take care of the fish when I am away (look)

==> Can you.........when I am away

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