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him well, I would have invited him to my birthday party. A. Had I known B. Shoul

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him well, I would have invited him to my birthday party. A. Had I known B. Shoul

 

______ him well, I would have invited himto my birthday party.

         A.Had I known                            B.Should I know

         C.If I know                                   D.If I knew

 

试题答案

【答案】

A

【解析】