Question

ПОМОГИТЕ!!!
5. What Nick (to do) when you came to his place?
6. What you (to do) when I rang you up?
7. I (not to sleep) at nine o'clock yesterday.
8. What he (to do) yesterday? - He (to read) a book.
9. What he (to do) the whole evening yesterday? - He (to read) a book.
10. She (to sleep) when you came home?
11. My brother (not to play) tennis yesterday. He (to play) tennis the day before yesterday.
12. My sister (not to play) the piano at four o'clock yesterday. She (to play) the piano the whole evening.
13. When I came into the kitchen, my mother (to cook).
14. She (to cook) the whole day yesterday.
15. We (to wash) the floor in our flat yesterday.
16. We (to wash) the floor in our flat from three till four yesterday.
17. You (to do) your homework yesterday?
18. You (to do) your homework from eight till ten yesterday?
19. Why she (to sleep) at seven o'clock yesterday?
20. He (to sit) at the table the whole evening yesterday

Answer 1

5) was Nick doing
6) were you doing
7) I was not sleeping
8) What did he do yesterday? He read a book
9) What was he doing ...? He was reading ...
10) Was she sleeping..?
11) did not play ... He played...
12) was not playing... She was playing...
13) was cooking
14) was cooking
15) washed
16) We were washing..
17) Did you do...?
18) Were you doing your....? 
19) Why was she sleeping ...?
20) He was sitting at.....