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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Last year, I usually spent a lot of time ____my homework. And at the same time, I paid some money ____ my musical classes.
#48816
A
to do, for
B
doing, for
C
and do, on
D
with doing, on
---When was he born?---He was born ________the morning________June 5.
#48098
A
in,of
B
on,of
C
in,on
D
on,on