－Why does the river smell terrible? －Because the water_______.
#42170
A
was polluted
B
has been polluted
C
will be polluted
D
has polluted
推荐题目
By the end of last month, I _____ all the CDs of Justin Bieber.
#42234
A
collect
B
collected
C
have collected
D
had collected
The children _______ a PE class on the playground when it suddenly began to rain.
#42155
A
have
B
are having
C
had
D
were having
---Do you know our town at all? ---No, this is the first time I_______ here.
#38511
A
was
B
have been
C
came
D
am coming
I would like to buy the black pen because I ___ that kind of pen ____ well.
#39870
A
have told; writes
B
have been told; writes
C
was told; wrote
D
have been told; is written