--- I bought the digital camera two months ago. --- You mean that you __________ it for two months. 
#41864
A
have had
B
have been
C
have bought
D
have taken
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By the first day of August, 2007, the PLA ________ for eighty years.
#39441
A
founded
B
has founded
C
has been found
D
had been founded
---Listen! Who ______ in the next room? ---I think Sam is.
#41778
A
sing
B
sings
C
singing
D
is singing
---How long __________ your parents ___________? ---For about twenty years.
#41734
A
did, marry
B
have, married
C
have, got married
D
have, been married