China's reform and opening has been going on for ________ is like about 30 years now and it's really quite remarkable.
#30333
A
that
B
which
C
what
D
it
推荐题目
He put on a smile and said it didn’t matter，________，in fact，he cared too much about what she said.
#31405
A
When
B
As
C
While
D
Once
(2013·福建，24)It's helpful to put children in a situation ________ they can see themselves differently.
#30497
A
that
B
when
C
which
D
where