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Please let us if you have good suggestions,however,we the difficulty working out

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Please let us if you have good suggestions,however,we the difficulty working out

Please let us_______ if you have good suggestions,however,we _______ the difficulty working out the subject early.

A.know;recognized B.recognize;know

C.recognize;recognized D.know;recognize

试题答案

答案:A

解析:
解析:考查两个动词know 和recognize 的用法。从整个句子来理解,第一空Please let us know 意思是请告诉我们,从而可排除B和C两项,再从时态来分析,应选A。

答案:A