Модальные глаголы

помогите пожалуйста выполнить упражнение по грамматике

1. Rephrase using the appropriate modals:

1) I’m sure he is at home.

2) I don’t think they will come, but who knows.

3) I think it is possible they will arrive on time.

4) It’s impossible that he is at work now.

5) I think she is crying.

6) I am sure the plan is going to be successful.

7) It seems to me that it will rain tomorrow, but maybe i’m wrong.

8) It is possible that the train will be 15 minutes late.

9) I’m sure he will win at the lections.

10) It is unlikely that they will get married soon.

11) I’m sure she has already visited a lot of wonderful places.

12) It is likely that they have been to London many times.

13) It seems quite possible to me that they watched this film when it was released.

14) It is unlikely that he has done the task.

15) I’m sure the teacher has already checked and graded the works.

16) It is likely that the shop has already closed.

17) It is unlikely that he lived in London last year.

18) I’m sure that they have lost their way.

19) It is possible that the concert has already started.

20) It is impossible that my friends have forgotten about the party.