◎ 题干
— Mary was heard            just now. What happened?
— John was telling a joke.

[     ]

A.cry
B.to cry
C.laugh
D.to laugh
◎ 答案
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◎ 解析
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◎ 知识点
    根据n多题专家分析,试题“— Mary was heardjust now. What happened? — John was telling a joke.[ ]A.cry B.to cryC.laugh D.to laugh …”主要考查了你对  【被动语态】【不定式】  等知识点的理解和应用能力。关于这些知识点的“档案”,你可以点击相应的链接进行查看和学习。