1. They (come) came back home after they (finish) had finished their work.
2. She said that she ( meet) had met Mr. Bean before.
3. Before he (go)went to bed, he (read) had read a novel.
4. He told me he (not/wear) hadn’t worn such kind of clothes before.
5. When I came to the stadium, the match (start) had started
6. Before she (listen) listened to music, she (do)had done homework.
7. Last night, Peter (go) had gone to the supermarket before he (go) went home.