1.
Не did (not open) the window before classes yesterday.
2. I (was hurrying)
to the library when I ( met) him.
3. She ( translated) a lot of
articles at the office last week.
4. We (were smoking) in the room when he
(saw) us.
5. We (were packing) our things when our taxi (came).
6. The
day before yesterday he (finished) his work at seven o'clock.
7. What
did he (do) ten years ago? – He (studied) at school.
8. Yesterday I (asked) my friend not to ring me.
9. My father (wrote) a very
interesting article last month.
10. She ( came) home at eleven o'clock
that's why she (did not call) you.