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

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

3. When I (come) ____came______, she (leave) _____had left_____for Dalat ten minutes ago.

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

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

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

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

8. Right now I (attend) _____am attending_____ class. Yesterday at this time I (attend) ______was attending____class.

9. Tomorrow I’m going to leave for home. When I (arrive) ___arrive_______at the airport, Mary (wait)will be waiting for me.

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