— I can’t get through to the general manager’s office.—The line is busy. Someone ________ the telephone.
#76155
A
must have used
B
could use
C
could have used
D
must be using
推荐题目
That truck nearly hit me; I ______.
#62833
A
might be killed
B
may been killed
C
may be killed
D
might have been killed
-May we leave the classroom now? -No, you ______. You ______ to leave until the bell rings.
#78353
A
mustn’t, are allowed
B
don’t have to, are supposed
C
needn’t, aren’t allowed
D
can’t, aren’t supposed
One of our rules is that every student wear school uniform while at school.
#63503
A
might
B
could
C
shall
D
will
—It's the office！So you ________ know eating is not allowed here.—Oh，sorry.
#62502
A
must
B
will
C
may
D
need