Chia động từ trong ngoặc ở thì quá khứ đơn hoặc quá khứ hoàn thành:
1. My father (tell) told me he (give) had given up smoking
2. He (be) was late because he (have) had had an accident
3. I (come) came to tell him they were the wrong seeds, but he (plant) had planted them already
4. It had been raining in the night, the ground (be) was wet
5. Mr John (be) had been in England for four years when the new government (come) came to power
6. A man who (be attacked) had been attacked by bandits was lying bleeding on the road
7. I now (have) have to leave the house where I (spend) had spent so many happy days
8. Although he (make) had made some mistakes, he (be considered) was considered good enough for promotion
9. He (want) wanted to find out whether you arrive
10. He (be treated) had been treated like a slave, so he (resign) resigned