—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
The words that we should pay attention to ________on the blackboard.
#44787
A
being written
B
are written
C
is writing
D
writing
 --- What should we do on No-smoking Day? --- People aren’t _________ on that day.
#44591
A
allowed smoking
B
allowed to smoke
C
allowing to smoke
D
allow smoking
This pair of socks ______ worn out. I'll have to buy a new ______.
#44734
A
is, one
B
are, ones
C
is, pair
D
are, pairs
The radio says a wild animal zoo is going to ____ in our city. 
#44930
A
be built
B
built
C
build
D
be building