jack was talking to his friend on the phone ____the door bell rang A while B when Cwhere D sinceA B 有什么区别 为什么正确答案是B

jack was talking to his friend on the phone ____the door bell rang A while B when Cwhere D since
A B 有什么区别 为什么正确答案是B

因为while后面接连续性的动作,when反之,而门铃响起只是短暂性的一个动作,故选B
你去看看这里有很详细的解答