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-Why on earth did he give up the experiment? -He found it useless ; it won’t wor

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-Why on earth did he give up the experiment? -He found it useless ; it won’t wor

—Why on earth did he give up the experiment?

—He found it useless ________ ; it won’t workout.

A. keeping on  B.to keep on

C. to be keepingon  D.being kept on

 

试题答案

答案：A

解析：
“他发现再坚持下去没有用。”ituseless实际是it was useless。

 

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标签：theupexperimentfoundhe

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