Great changes have taken place since we ___ E-times.And the computer is widely used .

问题描述:

Great changes have taken place since we ___ E-times.And the computer is widely used .
Great changes have taken place since we ___ E-times.And the computer is widely used throughout the world .
A entered B will buy C may buy

选A呀
因为A是指我们进入电子时代以来,已经发生了很大变化.
B和C在这里不清楚是什么意思,要买什么吗?