—China develops so fast.— That’s true. It ______ a lot already. 
#40170
A
changes
B
changed
C
will change.
D
has changed.
推荐题目
 I don’t know if it ____ tomorrow. If it ___, I will stay at home. 
#41644
A
will rain; rains
B
rains; will rain
C
will rain; will rain
D
rained; rains
—____ my pen?—Yes, I ___ it on your desk five minutes ago.
#40053
A
Have you seen; saw
B
Did you see; have seen
C
Will you see; am seeing
D
Do you see; will see