—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
Stamps are usually used _____letters.
#44752
A
to sending
B
to send
C
for send
D
for sent
She was seen ____ the theatre at that moment.
#44861
A
go into
B
to go into
C
went into
D
going into
Neither Jam nor his parents _______ places of interest here since they came to China.
#44627
A
will visit
B
has visited
C
have visited
D
visited
 Can’t you see that sign? Taking photos _______ here. 
#44371
A
aren’t allowed
B
don’t allow
C
isn’t allowed
D
doesn’t allow