— A computer is very popular and helpful .— I think so. It _______ in many different fields.
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A
used
B
will use
C
is used
D
was used
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—Our City Park     in 1998. —Wow, it has the same age as me.
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A
built
B
is built
C
has built
D
was built
There __________another English party next Sunday.
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A
are going to be    
B
was going to be
C
is going to be  
D
were going to be