There are eight rips in Dr.Roger's lecture on sleep,one of them is :------to bed early unless you think it is necessary.
问题描述：
There are eight rips in Dr.Roger's lecture on sleep,one of them is :------to bed early unless you think it is necessary.
A not to go
B don't go
为什么不能用A只能用B?
可能不太清楚，is 后有个冒号
文官提笔安天下,不是我不相信你，但是我做的两本教辅都选了B，老师以前也讲过，所以说答案一般是对的。
答
not to go to bed 这个搭配实际上是 不定式to go to bed 做主语.不定式做主语时候需要用形式主语,而不能直接将to do 放在前面例如 It was silly of us to believe him.我们真愚蠢,竟然相信了他.当不定式作主语的句子...