— I am going to the dentist at 4 o'clock and it is 3：30 now.— Well, if you ______ leave earlier today, please ask the director for permission.
#63360
A
can
B
may
C
must
D
will
推荐题目
I __________use a clock to wake me up because at six o'clock each morning the train comes by my house.
#63362
A
couldn’t
B
mustn’t
C
shouldn’t
D
needn’t
– Must I clean up the classroom right now, Miss Green?-- No, you ______.
#75722
A
mustn’t
B
can’t
C
needn’t
D
may not
It is hard to say what kind of person he is．Sometimes he is very friendly; at other times he ___ be very cold．
#62687
A
can
B
must
C
will
D
shall
Alice be at school because she phoned me from her home a minute ago.
#76102
A
mustn’t
B
isn’t able to
C
may not
D
can’t