It was quiet those big trucks started coming through the town A.before B.after C.until D.unless

问题描述:

It was quiet those big trucks started coming through the town A.before B.after C.until D.unless
为什么a d不对?

A.before 要用完成时.
B意思不通
C时间状语从句.
D除非.也是意思不好.
一直很安静,直到那些车通过城市.
问题补充:
一直很安静,(除非)那些车通过城市——事实上,如果车不通过的话,你怎么知道就不会安静?也许声音并不大.这种说法,很别扭啊~
逻辑上感觉就不好.