1. I _______ (see) a car accident while I _______ (wait) for you on this corner yesterday.
2. Mr.John _______ (be) priciple of our school since he _______ (graduate) in 1980.
3. My father _______ (not watch) TV every night.
4. I _______ (meet) Arthur three weeks ago.
5. Someone _______ (steal) my handbag on the bus.
6. Violets _______ (bloom) in spring.
7. We _______ (not live) in England for two years now.
8. My father _______ (not smoke) for 5 years.
9. How long Bob and Mary _______ (be) married?
10. You _______ (receive) any letters from your parents yet?
11. Tom Baker _______ (not come) here tomorrow.
12. He often _______ (say) O.K when he _______ (talk) with the guests.
13. Yesterday the thieves _______ (break) into the house and _______ (steal) a lot of our coats _______ while the guests _______ (dance).
14. She _______ (ask) me to tell about him several times.
15. At that time? Well, I _______ (work) in my office at that time.
16. Sometimes I _______ (get) up before the sun _______ (rise).
17. Up to now, the teacher _______ (give) our class five tests.
18. We _______ (be) from France. We _______ (be) there for 20 years.
19. Look! A man _______ (run) after the train. He _______ (want) to each it.
20. Daisy _______ (cook) some food in the kitchen a present. She always _______ (cook) in the morning.