The reason ________ he died was lack of medical care.

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--This __________ John's house．It's number 101．

--I don't think so．He said a large white house but this is a small one．

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When he came back，he found the bag he had _________ over the seat was gone．

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Whenever I speak to him，_________ was fairly often，he would talk on and on without giving me a chance to speak．

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--You'd better keep quiet in class．

--Sometimes I ________ ．Yesterday，I was very quiet during my English class．

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He was reading a book ________ “My Home Town”

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There was a terrible noise ________ the sudden burst of light.

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_________ there are a large number of chemical factories，the air is likely to be polluted．

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There ________ a lot of rain this summer.

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--Haven't we met each other at ________ party?

--Yes．but I can't remember whether it is ________ Christmas when we were in college．

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