题目内容
—Can we walk across the road now?
—No, we . We have to wait until the light turns green.
A.couldn’t B.needn’t C.shouldn’t D.mustn’t
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题目内容
—Can we walk across the road now?
—No, we . We have to wait until the light turns green.
A.couldn’t B.needn’t C.shouldn’t D.mustn’t