—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
The road ______ last year.
#45073
A
builds
B
built
C
was built
D
is built
Some new teaching buildings ____ in Shunyi last year. 
#44466
A
build
B
are built
C
built
D
were built
Put on more clothes, Kate. The window in our room ______ yesterday. 
#44786
A
was broken
B
are broken
C
have broken
D
will break
The old over 90    __  not only by their family but also by the government in many places.
#44473
A
is looked at
B
are taken good care of
C
are taken good care
D
is looking after