1. was eating (key: at 6 o`clock yesterday -> dùng thì qktd)

2. was (key: 3 years ago -> dùng thì qk) / worked

3. drove (key+: last month) / did

4. bought (key: last week -> dùng thì quá khứ)

5.

6. was not

7. did not go (key: last week -> thì quá khứ)

8. saw (key: last night -> thì quá khứ)

9. were doing/ were drinking (key: at the party last night -> thì quá khứ tiếp diễn)

10. what time do you get up this morning (key: this morning -> thì ht)

11. caught (key: last week -> thì quá khứ)