The class 80 students is hard to manage.A. consisting of B. consists of C. making up of

问题补充：

The class 80 students is hard to manage.

A. consisting of

B. consists of

C. making up of

D. made up

答案：

(答案→)A. consisting of

B. consists of

C. making up of

D. made up

解析：短语辨析。consist of常用整体作主语，表示“整体由部分组成”，引申为“包含有”，不能用于被动语态。make up用部分作主语，表示“部分构成整体”，用于主动语态；如果用整体作主语，必须用被动结构be made up of，这时可以和consist of互换。句意：这个由80个学生组成的班级很难管理。现在分词作定语表示正在进行的动作。结合语境可知选A。