Mary was heard ----just now .what happen?
Johe was telling a joke .
A.cry Bto cry C,laugh D.to laugh为什么?
人气：372 ℃ 时间：2020-02-27 01:41:20
解答
hear+宾语+补语{do---------------只有是DO时,被动式才加TO {doing {done 此题换成主动句式,应为hear Mary laugh .所以被动式还原To.此题选D. 根据语意排除的AB. 类似单词有see listen ...
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