—There's someone knocking on the door．Who it be?—It must be Mary．She promised to be here at 8：00．
#62257
A
must
B
can
C
shall
D
need
推荐题目
You drink wine before driving, or the police will take your license away.
#77356
A
don’t have to
B
needn’t
C
mustn’t
D
may not
—Whose purple coat is this?—It ____ be Lily’s. Hers is red. It _____ be Lucy’s. She likes purple.
#75643
A
must; may
B
may; must
C
can’t; may
D
mustn’t; must
(2014·山东省实验中学一模)You________get an allexpensepaid vacation to Australia if you can answer all the questions.
#62193
A
must
B
can
C
shall
D
may
You ______be tired after working for eight hours without ______ a rest.
#74847
A
can; have
B
may; having
C
must; having
D
need; to have