题目内容

---Must we donate our pocket money to the poor right now?
---No, you _______. You can think it over and do it before Friday.
A．mustn’tB．needn’tC．can’tD．couldn’t
B
考查must的否定回答.must含义是必须,一定;mustn’t含义是禁止.故must的否定回答,一般借助于needn’t和don’t have to,结合前文no,可知本句为否定回答.结合所给选项,可知选B.
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