Bài 6: Hoàn thành những câu sau, sử dụng thì quá khứ hoàn thành của động từ. 1. When I arrived at the station, the train (leave)_________________. 2. My friend (live)___________in China before she moved to American. 3. They (never been) _______________ here before. 4. After I (finish) __________ my breakfast, I went to work. 5. The student (not finish) __________their assignments so they were in great troubles. 6. After the couple (eat) ____________seafood at a seaside restaurant, they felt sick. 7. If you (listen) __________to my advice, you wouldn’t have made that silly mistake. 8. What did Jim do after he (finish)__________his homework? 9. The trees were dead because it (be)_____________dry all the summer. 10. _____________(you/meet) Jane anywhere before? 11. Yesterday I was late for the train because I (forget) _____________my ticket home. 12. Peter told me that he (prepare) __________every thing for his party. 13. The grass was yellow as it (not rain) _________all summer. 14. The electricity was cut off because we (not pay)___________our hydro bill on time. 15. We (not eat) ___________all the morning, so we felt very hungry.