1. Vicky ( go ) went out after she ( do ) had done her homework
GT : đầu tiên chia ở thì quá khứ tiếp
MC : After + past perfect (quá khứ hoàn thành)
2. Yesterday some litter boys ( ring ) rang the bell and ( run ) ran away
GT : có từ "yesterday" nên phải chia quá khứ đơn
3. After the boy ( break ) had broken the window , they ( run ) ran away
=> chia ở thì quá khứ hoàn thành
4. We were good friends . We ( know ) had known each other for years
GT : tương tự
5. When I arrived ( arrive ) at the party . Lucy ( already go ) had already gone home
When + simple past/past perfect
6. When I saw the girl I was sure I ( meet ) had met her before
GT : nt
7. I hadn't heart ( not hear ) the new until I ( read ) read the newspceper
sử dụng thì quá khứ hoàn thành
8. When we ( see ) saw Rachel , she ( wave ) had waved fous
9. The light didn't work because some ( take ) had taken the bulb
10. The teacher had already given ( already / give ) quit by the time I ( get ) got to class
=> 3 câu sau cũng như vậy nhé