题目内容
—Can I walk across the road now, Mrs.Chen?
—No, you ______.You have to wait until the light turns green.
A. couldn’t B. shouldn’t
C. mustn’t D. needn’t
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题目内容
—Can I walk across the road now, Mrs.Chen?
—No, you ______.You have to wait until the light turns green.
A. couldn’t B. shouldn’t
C. mustn’t D. needn’t