1. In all the world, there (be) __________ only 14 mountains that (reach) __________above 8,000 meters.

2. He sometimes (come) __________ to see his parents.

3. When I (come) __________, she (leave) __________for Dalat ten minutes ago.

4. My grandfather never (fly) __________ in an airplane, and he has no intention of ever doing so.

5. We just (decide) __________ that we (undertake) the job.

6. He told me that he (take) __________ a trip to California the following week.

7. I knew that this road (be) __________ too narrow.

8. Right now I (attend) __________ class. Yesterday at this time I (attend) __________class.

9. Tomorrow I'm going to leave for home. When I (arrive) __________at the airport, Mary (wait) for me.

10. Margaret was born in 1950. By the year 2005, she (live) __________on this earth for 55 years.

11. The traffic was very heavy. By the time I (get) __________to Mary's party, everyone already (arrive) __________

12. I will graduate in June. I (see) you in July. By the time I (see) __________ you, I (graduate) __________.

13. I (visit) __________ my uncle's home many times when I (be) __________ a child.

14. That book (lie) __________ on the table for week. You (not read) __________ it yet ?

15. David (wash) __________ his hands. He just (repair) __________ the TV set.

16. You (be) __________here before? Yes, I (spend) __________ my holidays here last year.

17. We never (meet) __________ him. We don't know what he (look) __________ like.

18. The car (be) __________ ready for him by the time he (come) __________tomorrow.

19. On arriving at home I (find) __________that she just (leave) __________a few minutes before.

20. When we (arrive) __________ in London tonight, it probably (rain) __________.