两者解释都没有差异但是while是指一件事发生的过程,一般用进行时如While I was doing my homework, my sister was playing.when是指一个瞬间,用一般时就可以了如When I finished the homework(finished the homework...
while sb was/were doing与when sb was/were doing
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what were you doing while i was away last week
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帮忙用was/were doing .when ; be about to do.when;had just done.
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帮忙用was/were doing .when ; be about to do.when;had just done.
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while+过去进行时,是不是总是sb.+was+doing sth
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What were you doing yesterday afternoon when I was watching
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while,when,+什么（例：want sb to do sth）
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when sb. do sth.和when sb. doing sth. when do sth. 和when doin
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When I was doing sth,sb was did形式造句 回答快的加悬赏,要质量!
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doing you what were watching when was i tv连词成句
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when sb doing sth,sb doing sth 这个句型可不可以?