—Can I walk across the road now, mum? —No, you_______. You have to wait until the light turns green.

题型：单选题题类：常考题难易度：普通

—Can I walk across the road now, mum?
—No, you_______. You have to wait until the light turns green.

A、couldn't B、shouldn't C、mustn't D、needn't

举一反三

— No. It ________be him. Mr. Li is much taller.

—That's true! Almost everything ______ be done online.

—No, you ______. You can stay here until 5:30.

—No, you _______.

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