当when引导的时间状语从句的主语与主句一致时拜托各位了 3Q

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• 英语的从句,while用法.1.我上英语课时,老师说：在when,while,as等引导词引导的时间状语从句中,如果主句主语和从句主语都发生在过去,持续性动词用过去进行时,短暂性动词用一般过去时.但我今天发现一道题目说,while只能引导延续性动词.请问这个怎么理解啊 2.当定语从句的从句中,缺少的是状语时,怎么区分这是定语从句还是同位语从句啊,比如说Life is a long race where we compete with others to go beyond ourselves中和I still remember the day when I first came to Beijing.为什么不能看成同位语从句,而用that引导啊.
• 当when引导的时间状语从句的主语与主句一致时拜托各位了 3Q
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• 当when引导的时间状语从句的主语与主句一致时拜托各位了 3Q从句用什么时态
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