Great changes         in China since 1978.
#39803
A
took place
B
has happened
C
have taken place
D
happened
推荐题目
People ____ any flowers until May.
#42555
A
will see
B
don’t see
C
won’t see
D
see
My brother usually _____ his classroom after school. But now he _____ basketball.
#39919
A
cleans; plays
B
is cleaning; plays
C
cleans; is playing
D
is cleaning; is playing