You look very tired. You ____ late last night.
#87853
A
needn’t sit up
B
didn’t need to sit up
C
shouldn’t sit up
D
needn’t have sat up
推荐题目
He ___ work in Hangzhou, did he?
#88928
A
usedn’t
B
didn’t used
C
used to
D
usen’t to
It’s important that the future ______ with a goal of caring for the environment.
#86808
A
will build
B
would be built
C
be built
D
was built
— Tom is never late for work. Why is he absent today ?— Something _______ to him. 
#90568
A
must happen
B
should have happened
C
could have happened
D
must have happened