I ______ her, but I never could.
#63534
A
ought to help
B
must help
C
ought to have helped
D
must have helped
推荐题目
Tom would rather _________than _________. 
#77217
A
stay at home , go out
B
to stay at home , to go out
C
to stay at home , go out
D
stay at home , to go out
You didn’t have breakfast. You ________ be hungry now.
#77187
A
must
B
can’t
C
could
D
might