题目内容：

The girl really doesn't know_______to do with the red button.这道题用what还是how?

优质解答

填how,
"do with"是“处理”的意思,在do with后没有接宾语的情况下才填what以作为它的宾语,本题do with后已有宾语,故填how.
"deal with"与"do with"都表示“处理”的意思,但deal with后不接宾语.是不及物的动词短语