1、地点状语从句由连词where, wherever等引导，例如Make a mark where you have a question, 在你有疑问的地方做个标记。 2、原因状语从句由连词because, as, since, when（既然）, now that等引导，如the little boy was crying because he was criticized。 3、目的状语从句由so that, in order that, in case等引导，例如my little...
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