问题补充:
Nowadays, we can obviously feel that the Net our life rapidly.
A. had changed
B. changed
C. is changing
D. was changing
答案:
A. had changed
B. changed
(答案→)C. is changing
D. was changing
解析:考察时态。根据nowadays和句意可知本题是与现在进行时连用。句意:现在文明能清楚地感觉到网络正在改变迅速我们的生活。