how to do it和how to do区别

题目

how to do it和how to do区别
The girl didnt know_.So she went to ask the manager for help空格应该填how to do it,还是how to do?

答案

填 how to do it .
how 是副词,不能作do 的宾语,所以必须加 it 作宾语.
how to do it =what to do
what 是代词,可以作 do 的宾语.


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