Mr zhang was walking along the street _____suddenly a car stopped just befor him

来源:百度知道 编辑:UC知道 时间:2024/06/21 06:18:18
A when B if C so D because

be doing sth when...是个固定句式,表示(某人)正在做某事的时候突然(另外某事)发生了
类似句式还有be about to do sth when
例如 i was about to leave when it started to rain.

A 引导时间状语从句