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1. (-) Duong and I didn't play tennis yesterday.
(?) Did Duong and you play tennis yesterday?
2. (-) She didn't visit her parents two days ago.
(?) Did she visit her parents two days ago?
3. (-) They didn't see her three months ago.
(?) Did they see her three months ago?
4. (-) They didn't live in this town in 2000.
(?) Did they live in this town in 2000?
5. (-) I wasn't ill last week.
(?) Were you ill last week?
6. (-) The children didn't go to the zoo yesterday.
(?) Did the children go to the zoo yesterday?
7. (-) We didn't meet her at the meeting last week.
(?) Did you meet her at the meeting last week?
8. (-) They didn't buy a new house last month.
(?) Did they buy a new house last month?