---I think ___of the materials I listened to at the begining of the exam ___easy

问题描述:

---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?

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.