A: When did the Shanghai Expo open? B: ___________ May 1st, 2010.
#49495
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In
B
On
C
At
D
By
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— A Boeing 777-200 plane became lost in communication (失去联系) at midnight the early morning of March 8th． —I was amazed(震惊) to hear that.
#45881
A
on
B
in
C
at
D
of
I t’s quite common in Britain to say “Thank you” to the drivers people get off the bus.
#49520
A
after
B
since
C
until
D
when