[视听材料] 高中英语经典句型归纳 英语句型

shimianmaifu

高中英语经典句型归纳
　　1. be doing/ be about to do。be on the point of doing / had done…, when…(when：这时, 强调一个动作的突然发生)1). I was walking along the river, when I heard a drowning boy cry for help.
　　2). I was about to leave when it began to rain.
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kobe

经典