1.He opened the window before classes.

2.Ann translated a lot of foreign letters at the office last week.

3.I finished work at five oclock the day before yesterday.

4. He live in Kiev five years ago.

5.They returned home in the evening.

6. They discussed a lot of articles from these French magazines last week-end.

Ответы:

1 He didnt open the window before classes.

   Did he open the window before classes?

2 Ann didnt translate a lot of foreign letters at the office last week

  Did Ann translate a lot of foreign letter at the office last week?

3 I didnt finish work at five oclock the day before yesterday

   Did I (you) finish work at five oclock the day before yesterday?

4 He didnt live in Kiev  five years ago

   Did he live in Kiev  five years ago?

5 They didnt return home this evening

   Did they return home this evening

6 They didnt  discuss a lot of articles from these French magazines last week-end

   Did they discuss a lot of articles from these French magazines last week-end?



It didnt open a window before classes.

2.Ann didnt translate many foreign letters at office last week.

3.I didnt finish work at five oclock the day before yesterday.

4.He doesnt live in Kiev five years ago.

5.They didnt come back home in the evening.

6.They didnt discuss many articles from these French magazines in last days off.

Я только сделал в отрицательной форме