nhớ gthik nha EXERCISE 4: Use the correct form of verbs in brackets. 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 . 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 regularly when I (be) __________ a child. 14. That book (be) __________ on the table for weeks. You (not read) __________ it yet ? 15. David (wash) __________ his hands. He just (repair) __________ the TV set.