—Excuse me, what’s this for?—It’s a cleaner and it       to pick up dirt.
#45057
A
uses
B
is used
C
is using
D
used
推荐题目
A new cinema _ in our city last year.
#44932
A
built
B
was built
C
will build
D
is built
The opening ceremony (开幕式) of the 2014 World Cup        in Brazil on June 12.
#44396
A
will take place
B
was taken place
C
will hold
D
was held
Excuse me. When can we play badminton at the court?  Not until it _______ next week.
#44835
A
repairs
B
will repair
C
is repaired
D
will be repaired
 No children _____ to watch this kind of movie because it is too scary. 
#44565
A
should allow
B
should be allowed
C
shouldn't be allowed
D
don’t allow