题目内容
( ) 27. ―Must I remember all the words on the blackboard,Mr. Li?
―No,you . But you need them.
A. mustn't;knowing B. needn't;to know
C. don't have to; knowing D. can't;to know
27. B由情态动词must引导的一般疑问句,其否定回答常用needn't或don't have to; need作行为动词时,后接动词不定式。故选B.
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