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1. My brother (listen)listened to music last night.
2. When I came to see Peter, he (do)was doinghis homework.
3. Mr Manh wishes he (be)were in Paris now.
4. Up to present, Mr John (write)has written more than one hundred novels.
5. Tim (always blame)is always blaming his faults on the others.
6. Mary (write)writes her pen pal once a week.
7. When the milkman came, my family (have)was having dinner.
8. Lan and Maryam (not respond)haven't responded each other for along time.
9. If she (study)studies harder, she (pass)will pass the examination.
10. It's important that you arm (operate)be operated now
1 for helping
2 at playing
3 of singing - dancing
4 to seeing
5 of driving
6 in listening
7 on moving
8 of joining
9 to carrying
10 to getting
37 have just been finished
38 seen my sister for 3 weeks
39 snow, all flights wouldn't be cancelled
40 I can't swim, I don't go scuba diving with Terry
2 Without his sister's help, John couldn't have done his homework
3 Instead of driving to work, I go by bus today
4 Mai doesn't mind giving you a hand
5 They don't know much about English
6 The noise prevented him from sleeping
7 The police have investigated the case for a week
8 We never had an intention of travelling abroad
9 Mary is believed to get the scholatship
10 Instrad of slowing down, he drove faster