题目内容
【题目】－Everyone in my class passed the exam.
－Oh，really? It________difficult.
A．can't have been
B．needn't have been
C．must be
D．mightn't be
【答案】A
【解析】考试已经过去，此处应是对过去的判断，所以选A项，表示“考试不会很难”。
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题目内容
【题目】－Everyone in my class passed the exam.
－Oh，really? It________difficult.
A．can't have been
B．needn't have been
C．must be
D．mightn't be
【答案】A
【解析】考试已经过去，此处应是对过去的判断，所以选A项，表示“考试不会很难”。