答案：C
three fourths 表示“四分之三”,分子用基数词,分母用序数词,当分子大于一时,序数词后面加S.再者,这里用的是materials作主语,谓语动词用复数形式,所以正确答案是C.
---I think ___of the materials I listened to at the begining of the exam ___easy
---I think ___of the materials I listened to at the begining of the exam ___easy
A.three fourths;is B.third four;are C.three fourths;are D.three fourth;are
three
什么情况下用is are?
A.three fourths;is B.third four;are C.three fourths;are D.three fourth;are
three
什么情况下用is are?
英语人气：182 ℃时间：2020-04-22 08:15:11
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