Had I known the party was so boring I wouldn’t have come. I anything.A. hadn’t done B.

问题补充：

Had I known the party was so boring, I wouldn’t have come. I anything.

A. hadn’t done

B. haven’t done

C. didn’t do

D. wouldn’t do

答案：

A. hadn’t done

B. haven’t done

(答案→)C. didn’t do

D. wouldn’t do

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