--______ we clean the classroom at once? --No, you _____. You____ clean it after school.
#76555
A
Must, needn’t, may
B
Must, mustn’t, can
C
Shall, can’t, must
D
Need, mustn’t, may
推荐题目
—Hurry up , or you ________ catch the train. 
#75443
A
can’t
B
needn’t
C
mustn’t
D
shouldn’t
 I’m feeling much better now, so you           call the doctor.
#74169
A
couldn’t
B
wouldn’t
C
can’t
D
needn’t
—Must I finish the book today?—Yes, you ________, but you ________ finish it now. Have a rest.
#75918
A
do; don’t have to
B
do; mustn’t
C
must; don’t have to
D
must; mustn’t
--- Linda       late for school. --- But she arrives on time at present.
#77762
A
used to be
B
used to being
C
is used to
D
is used to being