Lf you are busy,you ___come to attend the meeting.a/mustn't b/ needn't c/ can't d/ have to不明白此句的语气应该用哪个词来修饰、

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Lf you are busy,you ___come to attend the meeting.a/mustn't b/ needn't c/ can't d/ have to不明白此句的语气应该用哪个词来修饰、

Lf you are busy,you ___come to attend the meeting.a/mustn't b/ needn't c/ can't d/ have to不明白此句的语气应该用哪个词来修饰、
Lf you are busy,you ___come to attend the meeting.
a/mustn't b/ needn't c/ can't d/ have to
不明白此句的语气应该用哪个词来修饰、

Lf you are busy,you ___come to attend the meeting.a/mustn't b/ needn't c/ can't d/ have to不明白此句的语气应该用哪个词来修饰、
b/ needn't
整句的意思是:如果你忙,你可以不来参加聚会.

b不需要,A表禁止,肯定不对。C不能D不得不都与题干的语气不符。

选B

B