1. They  ……went………..home after they  ……had finished…………… their work.

2. She said that she …..........already had seen…………………. Dr Rice.

3. After taking a bath, he  ……had gone…………….. to bed.

4. He told me he  ……hadn't eaten…………………… such kind of food before.

5. When he came to the stadium, the match …..already had begun…

6. Before she  ……watched………. TV, she ……had done…………. homework.

7. What .....had been..... he when he  ……was…………. young?

8. After they  …had gone…, I  ………sat……….. down and  ……rested………

9. Yesterday, John ……had gone………….. to the store before he  ………went………… home.

10. She  …………had won……………. the gold medal in 1986.

Thì quá khứ hoàn thành:

(+)S+had+VpII

(-)S+hadn't+VpII