___ China’s reform（改革）and opening up in fate 1978, its quick development has aroused worldwide attention.
#34534
A
When
B
As
C
While
D
Since
推荐题目
When the elevator doors open, stand aside and let everyone out ________ you try to get in.
#31237
A
unless
B
although
C
until
D
before
__________ you promise to come to help me,I don’t mind what time tomorrow you arrive at my place.
#80081
A
So long as
B
So far as
C
As good as
D
As well as
Henry had just given himself for lost ______ he was spotted by a ship.
#31451
A
when
B
while
C
as
D
after
He never thought that his success came ________ he least wanted it.
#30260
A
until
B
since
C
when
D
while