--- Your classroom is very clean.--- Sure. It ________ after school every day.
#44701
A
is cleaned
B
cleans
C
cleaned
D
is cleaning
推荐题目
He thought that computers would never be _____ most people.
#44685
A
used by
B
used for
C
useful by
D
use by
 The 30th London Olympic Games ____________ on July 27th, 2012.
#44703
A
will be held
B
is held
C
was held    
D
has been held
—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
In the past the children were made ______15 hours a day.
#44973
A
to lock
B
work
C
to work
D
lock