He opende the door and stood there ,____what to say when he went in .
A.tohesitateB.hesitatedC.hesitatingD.havinghesitated答案是C选B为什么不行呢?...
A.to hesitate B.hesitated C.hesitating D.having hesitated
答案是C选B为什么不行呢? 展开
答案是C选B为什么不行呢? 展开
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