—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
Now computers _________ all over the world .
#44607
A
is used
B
are using
C
are used
D
have use
— Dad, may I go out with my friends? — Unless your homework          .
#44465
A
has been finished
B
has finished
C
finishes
D
will finish
 I think students _____ to do homework with friends.
#44494
A
should allow
B
should be allowed
C
were allowed
D
must be allowing
The words that we should pay attention to ________on the blackboard.
#44787
A
being written
B
are written
C
is writing
D
writing
The road ______ last year.
#45073
A
builds
B
built
C
was built
D
is built