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
The people there did not allow them to set up a factory _____ pollute the water in the river.
#49906
A
not so as to
B
so as not to
C
in order to
D
so that
