—What’s wrong with you, Eric? You look tired.—I ______ to prepare for the final exam last night.
#13444
A
picked up
B
woke up
C
stayed up
D
put up
推荐题目
It’s hot in the shopping mall, because the air-conditioning system ______. 
#13606
A
broke up
B
broke down
C
broke in
D
broke out
With prices rising sharply, we now have to spend _______ three months ago on basic living materials.
#14170
A
as twice much as
B
twice as much as
C
twice as more than
D
twice as many as