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题目内容
（合肥财经职业学院-建筑工程技术）
Although Jack made a foolish mistake, we __________ at him.
A、ought to have laughed
B、oughtn’t to have laughed
C、ought to laugh
D、should not to laugh
A、ought to have laughed
B、oughtn’t to have laughed
C、ought to laugh
D、should not to laugh
参考答案