The festival __________ for almost a month.
#39674
A
have been on
B
has been on
C
began
D
begun
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By the end of last month, I _____ all the CDs of Justin Bieber.
#42234
A
collect
B
collected
C
have collected
D
had collected
A: Alice, please tell Eric to call me when he _________ back. B: No problem.
#41713
A
come
B
comes
C
came
D
will come
－Why does the river smell terrible? －Because the water_______.
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A
was polluted
B
has been polluted
C
will be polluted
D
has polluted
---- Look! Somebody_______ the sofa.---- Well, it wasn't me. I didn't do it.
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A
is cleaning
B
was cleaning
C
has cleaned
D
cleaned