paul does nothing but all day longPaul does nothing but ____ all day long.A.play B.to play C.played D.playing为什么不选B呢?

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paul does nothing but all day longPaul does nothing but ____ all day long.A.play B.to play C.played D.playing为什么不选B呢?
paul does nothing but all day long
Paul does nothing but ____ all day long.
A.play B.to play C.played D.playing
为什么不选B呢?

paul does nothing but all day longPaul does nothing but ____ all day long.A.play B.to play C.played D.playing为什么不选B呢?
这是一个句型的固定搭配啦 do nothing but do...
我记得以前老师常常会把另一个固定搭配 have no choice but to do...跟这个 do nothing but do...放在一起 让我们记住.一个用的是动词不定式 一个是动词原形.碰到这种类似的句式都可以套用的.
有的东西是讲不出很细的所以然的~楼主记住就好啦~

D, 从Paul does nothing一般现在时,排除: A, C. B to play是动词不定式,不能放在but之后,所以用动名词playing做主语