1.
(-)Nam didn't write an essay in literature class this morning.
(?)Did Nam write an essay in literature class this morning?
2.
(-)I didn't watch tv yesterday morning.
(?)Did you watch tv yesterday morning?
3.
(-)Nam and you weren't in the english club last Tuesday.
(?)Were Nam and you in the english club last Tuesday?
4.
(-)They didn't eat noodles two hours ago.
(?)Did they eat noodles two hours ago?
5.
(-)We didn't always have a nice time on Christmas holiday in the past.
(?)Did you always have a nice time on Christmas holiday in the past?
6.
(-)My father didn't decorated the Christmas tree
(?)Did your father decorated the Christmas tree?
7.
(-)She didn't buy a new dress yesterday.
(?)Did she buy a new dress yesterday?
8.
(-)They weren't late at school.
(?) Were they late at school?
9.
(-)Mr.Tam didn't take his children to the museum last Sunday.
(?)Did mr.Tam take his children to the museum last Sunday?
10.
(-)Hoa didn't make a cushion for her armchair.
(?) Did Hoa make a cushion for her airmchair?
Chúc bạn học tốt^_^