A number of students ___the exam so far,but the number of the students who failed__great.A passed;were B.has passed;are
问题描述：
A number of students ___the exam so far,but the number of the students who failed__great.A passed;were B.has passed;are C.have passed;is D.have passed;are
答
A number of students __C_the exam so far,but the number of the students who failed__great.A passed;were B.has passed;are C.have passed;is D.have passed;arewhy？其实这个题目用排除法最简单.the number of指的是挂科学生的人数，后面跟单数，所以只能是C