Ответ:

3) She writes...

4) He is playing...

5) My boss flies...

6) I am cooking.

7) That man is trying...

8) Are you walking...

9) The bank is not open...

10) Her son doesn't visit...

11) He washes...

12) He is having...

13) What are you doing?

14) Snakes sleep

15) Many people don't like...

16) I am listening...

17) We r staying...

18) She goes...

19) They never write

20) I am waiting...