當(dāng)兩個(gè)句子都是進(jìn)行時(shí)的時(shí)候,用while表示同時(shí)進(jìn)行.
當(dāng)一個(gè)是進(jìn)行時(shí)另一個(gè)不是的時(shí)候,while和when都可以表示當(dāng).
比如He came in when/while I was reading.當(dāng)我正讀書(shū)的時(shí)候他進(jìn)來(lái)了.
My brother is singing_____my sister is dancing
My brother is singing_____my sister is dancing
填whiel還是when
為什么?
填whiel還是when
為什么?
英語(yǔ)人氣：963 ℃時(shí)間：2019-11-12 01:10:18
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