—Oh, this is really an old building.—Do you know when it        ?
#44645
A
has built
B
is built
C
was built
D
will be built
推荐题目
—Look at the sign on the right. —Oh, parking ______ here.
#44971
A
doesn’t allow
B
isn’t allowed
C
didn’t allowed
D
wasn’t allowed
The story book _________ for two weeks .
#44824
A
has been borrowed
B
has borrowed
C
has been kept
D
has kept
These books should      to the library on time. 
#44981
A
send
B
be returned
C
give back
D
be got back
The river smells terrible. People_______ dirty things into it .
#44850
A
must stop to throw
B
must stop from throwing
C
must be stopped to throw
D
must be stopped from throwing