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什么时候when sb do sth 可变成when doing sth
when只是用来举例的一个连词 如果换成since是不是就不行?
为什么?
哪些行哪些不行?
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推荐答案 2008-03-02
当前后主语一致时可以这样.
例如:When watching TV, he got the news.
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第1个回答 2008-03-02
两个本身语法有错误。如果你想表达的意思单纯是什么时间想做某事改成进行时态,i am doing something now 或i was doing …
第2个回答 2008-03-02
不是吧,貌似是独立主格或是前后主语一样时的省略形式,有例句么
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