—May we leave classroom now?—No, you        . You        to leave until the bell rings.
#44886
A
mustn’t, are allowed
B
don’t have to, are supposed
C
needn’t, aren’t allowed
D
can’t, aren’t supposed
推荐题目
Today a lot of information can         online.
#44965
A
receive
B
be received
C
is received
D
receiving
The old should _____ well.
#44832
A
be take care of
B
look after
C
be looked after
D
be taking car of
Many trees and flowers ________ in our city every year.
#44991
A
planted
B
are planted
C
were planted
D
plants