1. By the time I left the room, I (turn) ________________ off the lights. 2. She got a job after she (graduate) _________________ 3. She had no sooner cleaned the house than she (go) ____________ out. 4. Peter (never hear) _____________about Halloween before he came to school. 5. Since she worked at her company, she (not have) _____________a day off for through her illness. 6. John (repair) _______________his bike for two hours. 7. When the war began we (work) ______________ in the factory. 8. I (be)__________ to New York three times this year. 9. When we arrived, the film ( started)_______________for five minutes. 10. At nine o‟clock yesterday morning, we (wait) _____________

1. By the time I left the room, I (turn) _______had turned_________ off the lights.

-> By the time S+ V(QKD), S+(QKHT)

2. She got a job after she (graduate) _____had graduated____________

-> S+V(QKD) after S(QKHT)

3. She had no sooner cleaned the house than she (go) _ gone__________ out.

-> S + had no sooner +V(QKD) than S+V(QKD)

4. Peter (never hear) _______had never heard______about Halloween before he came to school.

-> S + V(QKHT) + before + S +V(QKD)

5. Since she worked at her company, she (not have) ___hadn't had_________a day off for through her illness.

-> Trước since là quá khứ hoàn thành sau since là quá khứ đơn

6. John (repair) ____has repaired___________his bike for two hours.

-> Có for là dấu hiệu của hiện tại hoàn thành

7. When the war began we (work) ____worked__________ in the factory.

-> When S+V(QKD) +S+V(QKD)

-> Diễn tả hai hành động xảy ra gần nhau, hoặc là một hành động vừa dứt thì hành động khác xảy ra.

8. I (be)___have been_______ to New York three times this year.

-> dịch nghĩa: tôi đã tới NY ba lần trong năm nay

9. When we arrived, the film ( started)______started_________for five minutes.

->When S+V(QKD) + S+V(HTHT)

-> Diễn tả hai hành động xảy ra gần nhau, hoặc là một hành động vừa dứt thì hành động khác xảy ra.

10. At nine o‟clock yesterday morning, we (wait) _____were waiting________

->có yesterday công thêm thời gian cụ thể dùng quá khứ tiếp diễn