—Why does the lake smell terrible?—Because large quantities of water ________.
#99571
A
have polluted
B
is being polluted
C
has been polluted
D
have been polluted
推荐题目
He ___________busy yesterday, or he __________you with your experiment.
#100168
A
was; had helped
B
was; would have helped
C
had been; would have helped
D
were; would have helped
---- Do you know our town at all?----No, this ________ the first time I _________ here.
#103070
A
was; has come
B
is; come
C
is; had come
D
is; have come
Johnson ____ for 5 years for political reasons when he was young.
#103756
A
was put in prison
B
was in the prison
C
got out of prison
D
was in prison
. They gave us so warm a welcome that we were moved very much. It was a sight__________ we__________.
#103750
A
what;have never forgotten
B
which; wre never forgotten
C
as ;will never forget
D
that; would never forget
We first met on a train in 2000. We both felt immediately that we___each other for years.
#101191
A
knew
B
have known
C
had known
D
hope