题目内容
用适当的介词或副词填空
We can laugh ________ a funny thing, but we shouldn't laugh ________ others when they are ________ trouble and make mistakes.
答案:over;at,in
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题目内容
用适当的介词或副词填空
We can laugh ________ a funny thing, but we shouldn't laugh ________ others when they are ________ trouble and make mistakes.