— Can we leave the classroom now?— No, you ______. You ______ to leave until the bell rings.
#74363
A
mustn’t, are allowed
B
don’t have to, are allowed
C
needn’t, aren’t allowed
D
can’t, aren’t allowed
推荐题目
－I’d like to help the homeless people in the earthquake. －You ________ join a volunteer group.
#74891
A
must
B
need
C
can
D
couldn’t
—How much shall I pay for the phone call? —You________. This is free of charge.
#63321
A
shouldn't
B
can't
C
don't have to
D
mustn't
The company is quite honest and guarantees the new product ______ be under warranty for three years.
#62995
A
should
B
shall
C
will
D
can