---- There is a lot of smoke coming out of the teaching-building there.---- Really? It _____ be a fire, most probably.
#89477
A
can
B
ought to
C
have to
D
must
推荐题目
--- It took me two hours or so to walk here. --- But you ______ here in Billy’s car.
#88139
A
could have come
B
must have come
C
must come
D
could come
No student go out of school after eleven o’clock at night without the teacher’s permission.
#87116
A
shall
B
must
C
will
D
may
You _______ pay too much attention to your reading skill, as it is so important.
#88174
A
cannot
B
shouldn’t
C
mustn’t
D
needn’t