These days students in some schools ______ not to use mobile phones. 
#44924
A
ask
B
asked
C
are asked
D
were asked
推荐题目
In the past five years some new buildings _____ in our home town.
#45033
A
build
B
was built
C
have built
D
have been built
In the past the children were made ______15 hours a day.
#44973
A
to lock
B
work
C
to work
D
lock
—Can I get my ears pierced, Mom? —No. As a student, you ________ do that.
#44593
A
are allowed to
B
should be allowed to
C
may not
D
shouldn’t be allowed to
—When _________ the car _______ ?—Sorry. I don’t know.
#44961
A
does; invent
B
did; invent
C
was; invent
D
was; inventing