The motorbike _____ start, no matter how hard he tried.
#62786
A
shouldn’t
B
couldn’t
C
wouldn’t
D
mightn’t
推荐题目
--- I spent two weeks in London last summer. --- Then you must have visited the British Museum during your stay, _______ you?
#62176
A
mustn’t
B
haven’t
C
didn’t
D
hadn’t
—Mum, I watch TV now ? —No, you finish your homework first.
#74952
A
may, need
B
can, have to
C
do, must
D
may , must
According to the school rules, no student __________ go out of the school after eleven o’clock at night without the teacher’s permission.
#63033
A
will
B
must
C
may
D
shall
Some frightening pets _________ be kept home so that they won’t hurt others.
#75599
A
can
B
may
C
must
D
need
The boss ______ the worker how to do it, or the accident couldn’t have happened.
#63303
A
can’t have told
B
ought to tell
C
could have told
D
mustn’t have told