Bài Làm:
Bài tập 2: Chia động từ trong ngoặc
1. At this time last year, they (build) this house.
2. I (drive) my car very fast when you called me.
3. I (chat) with my friends while my teacher (teach) the lesson yesterday.
4. My father (watch) TV when I got home.
5. At this time yesterday, I (prepare) for my son's birthday party.
6. What you (do) at 8 pm yesterday?
7. Where you (go) when I saw you last weekend?
8. They (not go) to school when I met them yesterday.
9. My mother (not do) the housework when my father came home.
10. My sister (read) books while my brother (play) football yesterday afternoon.
Bài tập 2:
1. were building
2. was driving
3. was chatting - 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