There's nothing for us to do except _____the meeting.A.to put off B.put off C.to be put off D.putting off 为什么不是to put off?此类题该如何解答?

There's nothing for us to do except _____the meeting.A.to put off B.put off C.to be put off D.putting off 为什么不是to put off?此类题该如何解答?
There's nothing for us to do except _____the meeting.
A.to put off B.put off C.to be put off D.putting off 为什么不是to put off?此类题该如何解答?

There's nothing for us to do except _____the meeting.A.to put off B.put off C.to be put off D.putting off 为什么不是to put off?此类题该如何解答?
举个例子吧：Every day Mary does nothing except watch TV.每天玛丽除了看电视以外什么都不干.(except后接动词时,一般为带to的动词不定式.但如果except前面有谓语动词do或其相应形式时,后面通常接省略to的动词不定式.)
所以,你懂了?

前面有to do，后面就用动词原形；前面是do的话，后面就用to do。