we don't know how to do that.We don't know what makes us laughhow 后边为什么加 to 而what后不加呢

来源:学生作业帮助网 编辑:作业帮 时间:2024/05/12 16:11:06
we don't know how to do that.We don't know what makes us laughhow 后边为什么加 to 而what后不加呢

we don't know how to do that.We don't know what makes us laughhow 后边为什么加 to 而what后不加呢
we don't know how to do that.We don't know what makes us laugh
how 后边为什么加 to 而what后不加呢

we don't know how to do that.We don't know what makes us laughhow 后边为什么加 to 而what后不加呢
how to do that是不定式短语做宾语,也可以用how we can do that,是宾语从句.而what makes us laugh是宾语从句,且what 在从句中做主语,所以what 后面不加to.