China began to open to the outside world in the late 1970s. _________, there have been great changes in the country.
#46264
A
By then
B
As a result
C
At last
D
In all
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–When did the earthquake of Ya’an happen?–It happened _______ April 20, 2013.
#48000
A
at
B
in
C
on
D
to
How many students are born _________the star sign of Aquarius in your class?
#48820
A
with
B
to
C
under
D
for