Bài 1 :
1. were building
2. was driving
3. chatted- was teaching
4. was watching
5. was preparing
6, were you doing
7. were you going
8. weren't going
9. wasn't doing
10. was reading- was playing
***
1. He wasn't planting trees in the garden at 4 p.m yesterday.
-> Was he planting trees in the garden at 4 p.m yesterday?
-> He was planting trees in the garden at 4 p.m yesterday.
2. They weren't cooking when she came work yesterday.
-> Were they cooking when she came work yesterday?
-> They were cooking when she came work yesterday.
3. She wasn't paniting a picture while her mother was making a cake.
-> Was she painting a picture while her mother was making a cake?
-> She was making a picture while her mother was making a cake.
4. Anne wasn't riding her bike to school when Peter saw her yesterday.
-> Was Anne riding her bike to school when Peter saw her yesterday?
-> Anne was riding her bike to school when Peter saw her yesterday.
5. He wasn't typing a letter when his boss went into the room.
-> Was he typing a letter when his boss went into the room.
-> He was typing a letter when his boss went into the room.
(Bài này đề yêu cầu trả lời, mình nghĩ trả lời là câu mẫu đã cho, nếu sai bạn thông cảm nhăn ;-;)
Bn học tốt!!