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I think ______ of the materials I listened to at the beginning of the exam ______ easy.

A．three fourths, is	B．third four, are
C．three fourths, are	D．three fourth, are

考查分數表達方法及主謂一致。表達分數時當分子大于一時，后面序數詞用復數形式。資料總數是復數，四分之三的資料也是復數，故用are，選C。

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