He left his hometown in 1990, and great changes _________ ever since. 
#99346
A
had taken place
B
took place
C
have been take place
D
have taken place
推荐题目
When Mary came, I _____ on the piano.
#100254
A
is playing
B
plays
C
was playing
D
played
Our food supply _____. We’d better get some in case there’s ____ left.
#101949
A
is running out, none
B
has run out of, none
C
is using up, nothing
D
has used up, nothing