The day (A)before(B)until Tim left school(选A还是B?)

来源:百度知道 编辑:UC知道 时间:2024/05/27 14:08:56
请说明原因

A
until意为直到什么,才什么,一般连接量个动作或事,如she didn't go home until he finished his work.
before意为再什么之前,如常说的the day before yesterday(前天)

A