@dg
1. They went to Nha Trang last month.
-> They didn't go to Nha Trang last month
-> Did they go to Nha Trang last month?
2. He played table tennis with his father.
-> He didn't play table tennis with his father
-> Did he play table tennis with his father?
3. Lan saw you in the park last week.
-> Lan didn't see you in the park last week
-> Did Lan see you in the park last week ?
4. We were in the countryside last summer.
-> We weren't in the countryside last summer
-> Were we in the countryside last summer?
5. Mrs. Robinson bought a poster.
->Mrs. Robinson didn't buy a poster
-> Did Mrs. Robinson buy a poster?
6. Liz enjoyed her vacation in Da Lat last year.
-> Liz didn't enjoy her vacation in Da Lat last week
-> Did Liz enjoy her vacation in Da Lat last week?
7. Her aunt gave her a new skirt
-> Her aunt didn't give her a new skirt
-> Did her aunt give her a new skirt?
8. He was in out class two hours ago.
-> He wasn't in out class two hours ago
-> Was he in out class two hours ago?
9. They watched a good foolballmatch on TV last night.
-> They didn't watch a good football match on TV last night
-> Did they watch a good football match on TV last night?
10. Peter sent
-> Peter didn't send
-> Did Peter send?
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