He _____ be really difficult at times even though he ,generally speaking, is a nice person.
#63426
A
can
B
should
C
shall
D
must
推荐题目
According to the latest study，most traffic accidents be prevented if drivers are careful enough．
#62242
A
must
B
can
C
have to
D
need
—Listen! Is Mary singing in the next room?—No. It _______ be Mary．She has gone to Shanghai for an important meeting.
#74311
A
can’t
B
may not
C
mustn’t
D
needn’t
Teenagers _______ allowed to drive in the street．
#74366
A
should not be
B
should be not
C
not should be
D
shouldn’t
In general，she is devoted to her studies，but she________be little naughty at times.
#62476
A
will
B
can
C
should
D
would