— 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
— May I park my car here, Sir? —_________. You may park it over there.
#74702
A
Yes, you may
B
Yes, you can
C
No, you needn't
D
No, you mustn't
The first snow of every year is always so exciting, but too much snow _________ cause trouble
#62567
A
shall
B
need
C
can
D
must
—Why，I didn’t get you on the phone.—We ________football on the playground when you phoned.
#62277
A
must be playing
B
must play
C
must have played
D
must have been playing
------She looks very happy. She ______ have passed the exam. ------I guess so. It’s not difficult after all.
#63502
A
should
B
could
C
must
D
might
—Is John coming by train.—He should，but he ________ not.He likes driving his car.
#62500
A
must
B
can
C
need
D
may