I am used to going to bed early,but I have to stay up late( )A.at all times B.at times C.on time D.

题目

I am used to going to bed early,but I have to stay up late( )A.at all times B.at times C.on time D.
D.in time

答案

选B 意为有时 A:一直,相当于always,C：准时,D：及时,都不符题意.所以选B