Then a strong current of electrons follows that path from the cloud to the ground, and it is that current that lights the channel as the lightning we see.
【正确答案】 C
【答案解析】解析:然后,一个强大的电子流从云到地面,其所照亮的那条通道就是我们看到的闪电。illuminate“照亮”,与light同义,因此本题答案为C。