问题标题:
Asisknowntoalllanguagelearnersthenewlylearntwordswillsoonbeforgottenunless____usedineverydaycommunicationAgraduallyBextremelyCexactlyDfrequently
问题描述:
Asisknowntoalllanguagelearnersthenewlylearntwordswillsoonbeforgottenunless
____usedineverydaycommunication
AgraduallyBextremelyCexactlyDfrequently
蔡颖回答:
D(A是逐渐的;B是极端的;C是精确地,恰好的;D是频繁的)
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