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.