—China develops so fast.
—That’s true. It ______ a lot already.
A. changes B. changed C. will change D. has changed
—China develops so fast.
—That’s true. It ______ a lot already.
A. changes B. changed C. will change D. has changed
答案：D
解析:动词的时态。句意：—中国发展如此迅速。—是呀。它已经发生了很大的变化。表示发生在过去对现在仍有影响的动作。所以，判定为现在完成时。故选D。