Lots of empty bottles were found under the old man's bed.He must have done nothing but_____
问题描述:
Lots of empty bottles were found under the old man's bed.He must have done nothing but_____
A,drink B,to drink C,drinking D,drunk
答
答案是A
He must have done nothing but drink.
如果前面有do的一切形式(do done doing did does)but 后必须省略to.如果没有则要加to
切记!