Hoàn thành những câu sau, sử dụng thì quá khứ hoàn thành của động từ.
1. My friend (live) …… in China before she moved to the America.
2. They (never been) ……. here before.
3. After I (finish) …….. my breakfast, I went to work.
4. The students (not finish) …… their assignment so they were in great troubles.
1. My friend (live) …… in China before she moved to the America.
=> had lived
2. They (never been) ……. here before.
=> Had never been
3. After I (finish) …….. my breakfast, I went to work.
=> had finished
4. The students (not finish) …… their assignment so they were in great troubles.
=> hadn’t finished
1. had lived
2. had never been
3. had finished
4. hadn’t finished