1 He didn't open the window before classes.
Did he open the window before classes?
2 Ann didn't translate a lot of foreign letters at the office last week.
Did Ann translate a lot of foreign letters at the office last week?
3 I didn't finish work at five o'clock the day before yesterday.
Did I (you) finish work at five o'clock the day before yesterday?
4 He didn't live in Kiev five years ago.
Did he live in Kiev five years ago?
5 They didn't return home this evening.
Did they return home this evening?
6 They didn't 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?
1. He opened the window before classes.
(-) He didn't open the window before classes.
(?) Did he open the window before classes?
2. Ann translated a lot of foreign letters at the office last week.
(-) Ann didn't translate a lot of foreign letters at the office last week.
(?) Did Ann translate a lot of foreign letters at the office last week?
3. I finished work at five o'clock the day before yesterday.
(-) I didn't finish work at five o'clock the day before yesterday.
(?) Did I finish work at five o'clock the day before yesterday?
4. He lived in Kiev five years ago.
(-) He didn't live in Kiev five years ago.
(?) Did he live in Kiev five years ago?
5. They returned home in the evening.
(-) They didn't return home in the evening.
(?) Did they return home in the evening?
6. They discussed a lot of articles from these French magazines last weekend.
(-) They didn't discuss a lot of articles from these French magazines last weekend.
(?) Did they discuss a lot of articles from these French magazines last week-end?
