His face changes as the music from his violin changes.

His face changes as the music from his violin changes.
My mother is cooking while my father ______(read) books.第二句应该填写什么,两句话中的as while表示当.的时候,那么两个词有什麽区别
英语人气:927 ℃时间:2020-01-29 00:55:57
优质解答
as,while做连词时,都有 当...的时候(at or during the time that sth.happens)的意思,在这种情况下,2个词可以互换使用.
is reading books.
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