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40．People hardly replace any of them when they cut down so many trees every year, ?A. don’t they B. don’t people C. do they D. do peoplePeter was an office worker. He worked in an office in a small town. One day his boss 41 to him.“Peter. I want you 42 to London.to an office there. to 43 Mr. Brown. Peter went to London 44 train. When he got to London, he thought, “The office isn’t far from here, I can go there on foot. I’ll 45 it easily. But after an hour, he was still looking for it, he stopped and asked an old woman. She said, “Go along this street, turn left at the end, and it’s the second building on the right. Peter went and found 46 . A few days 47 , he went to London 48 , he did not find the office, 49 he asked someone in the street. It was 50 same old woman. She was very surprised and said, “Are you still looking for that place? 【查看更多】

 

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People hardly replace any of them when they cut down so many trees every year, _______?

A. don’t they                               B. don’t people  

C. do they                                 D. do people

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