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8.I soon found that the work I was doing had already been done by someone else,______,I was wasting my time.(  )
A.to make things worseB.for another thing
C.at the same timeD.in other words

分析 我很快发现我正在做的工作是别人已经做过了的,换句话说,我浪费了我的时间.

解答 答案:D 
to make things worse更糟糕的是;for another thing另一方面,其次;at the same time同时;in other words换句话说,也就是说.句意表达的是同义解释,故选D.

点评 插入语在英语中属于独立成分,它起着对一句话进行附加解释或说明的作用.它们中绝大部分可位于句首、句中或句末,并用逗号与其它成分隔开.

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