专升本英语【易错知识点】汇总
专升本英语【易错知识点】汇总过去时态用法识别:一般过去时(did(was/were)):发生在过去的动作或状态。时间标志词:yesterday, last week, an hour ago, the other day, in 1982过去进行时(was/were doing):过去某一时刻或阶段正在进行的动作。时间标志词:this morning, all day, from nine to
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