37. I tried all I could do the topic at the meeting, but failed.A. avoid mentioningB. to

37. I tried all I could do the topic at the meeting, but failed.
A. avoid mentioning
B. to avoid mentioning
C. avoiding to mention
D. avoiding mentioning

A. avoid mentioning(答案→)B. to avoid mentioningC. avoiding to mentionD. avoiding mentioning解析：可联系答.案.网客服索取。

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