i think of the materials i listened to at the beginning of exam easy A two thirds is

题目

i think of the materials i listened to at the beginning of exam easy A two thirds is
B second there are Ctwo thirds are 帮我先翻译一下再说一下为什么选这个答案

答案

我想我听的材料在考试开始时很容易
选C
谓语动词是is还是are是根据名词的单复数而定,这里的materials是复数,因此后一个空是are,排除A,
在英语语法中,分数的表示方法是：分子用基数词,分母用序数词,当分子大于1时,分母的序数词用复数,即加s,因此选C