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1.I suddenly realized that I _____(think) about Simon all afternoon.
2. After Sandy _____ (finish) breakfast she (make) some phone calls.
3. The accident (happen) while we (drive) to Norway.
4. I know Lucy fairly well. I (know) her for years.
5. Ricky (love) Kate passionately since they first (meet) in Canada.
6. Dolly __________(take) riding lessons for a year or so and then she _______ give them up.
7. Hardly ____ (he, do) an enormous amount of work when his friend ______(offer) him to help.
8. Sandy _____ (be) to Africa several times this year. It’s only June now.
9.John ______ (always, want) to go to Australia, but he ______ (never, manage) to get there.
10.Tracy (wait) until I (finish) my work.
11.They (go) two miles before it (begin) to rain.
12. Where have you been? I _____ (wait) for you since five o’clock.
13. The phone _____ (ring) while Robert ______ (have) a bath.
14. This is the last time I ______(ask) you that question.
15. I wondered why Tom ______ (not, write) letter so long.