题目内容
() 5. — Lisa,hurry up!The bus is coming.
—Oh,no. We cross the street until the traffic lights turn green.
A. mustn't B. needn't
C. should
5. A
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题目内容
() 5. — Lisa,hurry up!The bus is coming.
—Oh,no. We cross the street until the traffic lights turn green.
A. mustn't B. needn't
C. should