Our country _______ a lot in the last fifty years. 
#38761
A
will change
B
changed
C
changes
D
has changed
推荐题目
I don’t think it ____________ tomorrow.
#39936
A
does snow
B
is going snow
C
will
D
will snow
My Old Classmate also mentioned some important events that _______ from 1993 to 2013.
#36506
A
had happened
B
was happened
C
happened
D
has happened
—Why did you go there?—I __________the homes of movie stars. 
#39303
A
visit
B
visited
C
will visit
D
am visiting