Sometimes you may make very fast progress in a foreign language, but sometimes it is a while（）hard work starts to pay off !_精华吧

Sometimes you may make very fast progress in a foreign language, but sometimes it is a while（）hard work starts to pay off !

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Sometimes you may make very fast progress in a foreign language, but sometimes it is a while（）hard work starts to pay off !

A.when

B.after

C.before

D.while

正确答案：before

Tag：大学英语III 时间：2022-03-07 20:23:46

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