A: It's already 6:30. You must go now, mustn't you? B: No, we _________. The school bus is

题目简介

A: It's already 6:30. You must go now, mustn't you? B: No, we _________. The school bus is

题目详情

A: It's already 6:30. You must go now, mustn't you?
B: No, we _________. The school bus is coming. We must wait for it.
[     ]
A. mustn't
B. needn't
C. shouldn't
D. oughtn't to
题型:单选题难度:中档来源:模拟题

答案

B

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