云中歌主题曲绿罗裙:P13 34. We must try _____start fires at any time.

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P13 34. We must try _____start fires at any time.
A. to not B. not to C. to never

答案选C 为什么A、B不对

应该是:
没有前两个的用法
因为如果要否定用not的话
否定应该加在must后面为mustn't
用never加在to 后面比较合理

Try to do sth

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