1. What are you doing (do)” “I am reading (read).

2. If he rings (ring) me up tomorrow I'll tell (tell) him about it.

3. does He help (help) his mother every day?

4. At this time tomorrow we will be discussing (discuss) your report.

5. What were you doing (do) when I came in?

6. When did you see (see) him last?

7. Don’t ring me up at 11 o’clock, I will be sleeping (sleep).

8. On entering the drawing-room he found (find) that his two friends had got up (get) up and had been waiting (wait) for him.

9. We are (be) very busy now. We are discussing (discuss) a very important question.

10. Where is (be) Peter? He is having (have) his English lesson now? – No, he is having (have) his English tomorrow.

11. do You know (know) him? He is always telling (tell) a lie.

12. When I came (come) yesterday I saw (see) that my friend was doing (do) his lesson.

13. This problem is (be) too difficult to discuss it now. I think (think) we will discuss (discuss) it tomorrow, when we have (have) more time.

14. Where was she (be) yesterday? – She visited (visit) her friend. They were playing (play) chess the whole evening.

15. He wasn't eating (not to eat) when I came (come) yesterday. He was reading (read) a book.

16. My father was watching (watch) an analytical programme on TV, while I was preparing (prepare) for the examination.

17. What are you doing (do) now? – I was washing (wash) the dishes.

18. If we put (put) in cameras, they will stop (stop) people stealing things.

19. Yesterday morning I got (get) up and looked (look) out of the window. The sun was shining (shine), the birds were singing (sing).

20. We haven't solved (not to solve) the problem yet.

21. She had read (to read) the book by last Monday.

22. Pete and Ann will have painted (to paint) the house by next Friday.

23. I was working (to work) in the library from 3 till 6 yesterday.

24. He said he had read (to read) this book.

25. When did you first meet (meet) your teacher?