Our country _______ a lot in the last fifty years. 
#38761
A
will change
B
changed
C
changes
D
has changed
推荐题目
If I find his phone number,I ________ you.
#42412
A
tell
B
told
C
will tell
D
have told
By the end of last month, I _____ all the CDs of Justin Bieber.
#42234
A
collect
B
collected
C
have collected
D
had collected
He         for ten years.
#38965
A
has been married
B
married
C
got married
D
has married
I like the movie Harry Potter very much. I ________ it three times.
#36521
A
watch
B
watched
C
was watching
D
have watched