Question

8. When I (to look) out of the window, I (to see) that it (to snow) and everything (to be) covered with snow, 9. Somebody (to talk) in the next room? — No, nobody (to talk). My son (to watch) television now. 10. Why he (not to go) to school yesterday? — He (to be) ill. He (to stay) in bed the whole day. 11. You (to work), when I phoned you last night? - Yes, I (to work). 12. Why they (to sit) here now? - They (to wait) for their doctor. The doctor (to be) late. 13. He (to ask) you to work late last Tuesday? - No, he (not to ask). I (to decide) to work late myself. 14. Yesterday (to be) a typical summer day, the sun (to beat) down, the sky (to be) cloudless. 15. Yesterday, when he (to open) the door, he (to understand) that he (to do) it with a wrong key. 16. Every day she (to return) home, (to have) dinner and (to rest). But yesterday she (not to rest) after dinner, she (to work) at her report the whole evening.

Answer 1

Looked,saw,was snowing, was.
2. is talking,is talking,is watching. 
3. didn't go,was,stood
4. were working,was working
5. are sitting,are waiting,is
6. asked,didn't ask,was
8. was opening,understood,did
9. returns, has,rests,didn't rest,was working