Our country _______ a lot in the last fifty years. 
#38761
A
will change
B
changed
C
changes
D
has changed
推荐题目
 The students       the Art Festival when I passed by their school.
#41616
A
celebrate
B
were celebrating
C
will celebrate
D
have celebrated
His mother ____ in a village five years ago.
#41885
A
lives
B
lived
C
is living
D
will live
Don’t worry. He ________ you as soon as he gets home.
#36595
A
call
B
calls
C
will call
D
called