The World Expo (世博会) ____________ in Shanghai now. 
#42723
A
being had
B
is having
C
is holding
D
is being held
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As time _________,we know each other better.
#38826
A
goes by
B
passes by
C
went off
D
going by
 There ____ a class meeting tomorrow afternoon.
#37771
A
is going to have
B
is going to be
C
is having
D
is going to having
Our country _______ a lot in the last fifty years. 
#38761
A
will change
B
changed
C
changes
D
has changed