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(共16张PPT)
第2讲 状语从句
内容索引
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情境导入
考点解读
技法图解
情境导入
My mother was cooking in the kitchen while①I was doing my school assignments.As soon as② I finished my homework,I went to get some water to drink.Then the doorbell rang.However,my sister unlocked the door before③ I could open it.We were surprised...