shouldn’t
needn’t
couldn’t
mustn’t
49________.A.couldn’tB.mustn’tC.needn’tD.won’t
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You _________be too cautious when you are driving especially on the freeway. A.can' t B.needn' t C.mustn't D.won't
We__________have proved great adventurers,but we have done the greatest march ever made in the past ten years.A.needn't B.may not C.shouldn't D.mustn't
There′s plenty of time,so you__________worry about it.A.needn't B.couldn't C.mustn't D.wouldn't
I put my coat here? Sorry, you()A、May; mustn'tB、Do; don'tC、can; needn'tD、May; can't
A: Must we finish the work right now? B: No, you()You can do it tomorrow.A、needn'tB、shouldn'tC、mustn'tD、can't
单选题I ______ have watched that movie—it’ll give me horrible dreams.A shouldn’tB needn’tC couldn’tD mustn’t