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题目内容
（沈阳医学院-英语1）
He didn’t pass the final examination. He it.（2.0分）
2.0 分
A、
must have prepared for
B、
ought to prepare for
C、
ought to have prepared for
2.0 分
A、
must have prepared for
B、
ought to prepare for
C、
ought to have prepared for
参考答案