练习册

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    选B.由于上文说 didn’t have to work.所以下文相应的语境应是 did it by choice.类似地.下面一题应选D.也是因为choice与下文的have to do it 相呼应: Were you given a , or did you have to do it? A. job B. duty C. request D. choice 【查看更多】

     

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