Soon the bus ------ and some people ------ off.求这道英语选择题答案.

Soon the bus ______ and some people ______ off.求这道英语选择题答案.
Soon the bus ______ and some people ______ off.
A.stop,get B.stop,got C.stopped,got
这道选择题怎么做呢?B肯定不能选,但是A和C应该选哪一个呢?到底要不要选过去式呢?有没有懂英语的朋友可以帮帮我?O(∩_∩)O谢谢~~