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Mary was heard ----just now .what happen?

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Mary was heard ----just now .what happen?
Johe was telling a joke .
A.cry Bto cry C,laugh D.to laugh为什么?
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 notice feel observe make let have
原题干出现错误,应为What happened?