VI
1. When I arrived at his house , he was still sleeping
2. The lights went out while we were having dinner
3. Bill was having breakfast when I stopped at his house this morning
4. What did you do yesterday?
5. Did you watch TV last night?
6. Tom saw a serious accident while he was standing at the bus stop
7. While my father was reading a newspaper, I was learning my lesson
8. The children were playing football when their mother came back home
9. The bell was ringing while Tom was having a bath

VII
1. Listen! I think someone is knocking the door
2. Up to present, we have written almost every lesson in the book
3. The earth circes the sun once every 365 days
4. The farmers are working in the field at the moment
5. How many times have you seen him since he went to London ?
6. Rivers usually flow to the sea
7. Look! The girl is crying
8. We are from America. We have lived there for 20 years
9. I'm sorry. I have forgotten the girl's name already know
10. I have been waiting for the manager for two hours
11. My father doesn't watch TV every night
12. Don't call me in the afternoon. I always am away in the afternoon

1. turn
2.hops
3.celebrates
4.increased
5.produced
6.are working
7.has
8.have
9.have lived
10.live
11.will celebrate
12.are celebrating
13.attract
14. attracts
15.enjoy
16.enjoys

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