It was so noisy outside that we ____________ hear what they were talking about.A_刷题宝

题干

It was so noisy outside that we ____________ hear what they were talking about.

A．mustn't	B．didn't have to
C．ought not to	D．couldn't

上一题下一题 0.64难度单项选择更新时间:2016-03-17 11:29:16

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