The passengers ___out of the exit when we arrive at the airport

问题描述:

The passengers ___out of the exit when we arrive at the airport
A were just coming B just came C are just coming D just come
请问选什么,为什么,

选A 由时间状语从句 when we arrive at the airport可以看出,说的是过去的一个时间点正在发生的事情,故要用过去进行时.