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 last year, she (live) __________on this earth for 55 years .