问题补充:
7. There are over 300 teachers in our school, of them are women teachers.
A. two fifths
B. second five
C. two five
D. two fifth
答案:
(答案→)A. two fifths
B. second five
C. two five
D. two fifth
解析:英语中一般用基数词表示分数的分子,用序数词表示分数的分母。当分子是一时,分数的分母用单数形式,在表示分数时,当分数的分子大于一时,分数的分母要用复数形式。句意;我们学校有超过300名老师。他们中五分之二是女老师。结合语境可知选A。