问题
I study late every night, sometimes ______ 2 a. m.. It makes me stressed out.[ ]
A: for
B: in
C: as
D:until
B: in
C: as
D:until
正确答案是：
同类题型
She looks ________because she has a _______vacation.
You’re badly ill. You’d better _____ cold water. [ ]
The nurse should care __________ the patients day and night.[ ]
This kind of on-line game _______ a group of teenagers in China.
I want to be a computer manager.－________. I am studying computer science very hard.