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
推荐题目
It's very important _______ us ______ every day.
#48339
A
for;exercise
B
to;to exercise
C
for;to exercise
D
to;exercise
Li Ming’s birthday is _____April.
#46600
A
on
B
at
C
in
D
next
Drinking hot tea______honey is good______a sore throat.
#48178
A
for,at
B
with,at
C
and,for
D
with,for