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
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By the time he arrived at the airport, the plane            .
#41977
A
has taken off
B
was taking off
C
would take off
D
had taken off
Don’t return the video to Peter, I _____ it.
#39086
A
don’t watch
B
won’t watch
C
haven’t watch
D
wasn’t watching