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I wondered what difficulty he had the plan? A. to carry out B. carrying out C. c

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I wondered what difficulty he had the plan? A. to carry out B. carrying out C. c

 I wondered whatdifficulty he had _________ the plan?

A. tocarry out                         B.carrying out   

C.carried out                     D.with carrying out

 

试题答案

【答案】

 B