He cannot but _____ home because his car broke down on his way homeA.walk B.walkingC.to walkD.walked选哪个?为什么?
问题描述：
He cannot but _____ home because his car broke down on his way home
A.walk
B.walking
C.to walk
D.walked
选哪个?为什么?
答
a习语cannot but 有时候被判定为一种双重否定,这也许是因为它已混淆于can but .然而cannot but 中的 but 表示“除了”,就如用在象no one but 这样的短语中一样,而can but 中的 but 意思却是 only（只有） ,就如用在...