单选题 What are students expected to do before attending a class?

A、 Go over the lessons thoroughly.
B、 Understand the textbooks well.
C、 Do the reading assignments.
D、 Prepare an outline for discussion.

【正确答案】 C

【答案解析】本题为句义理解题。文章第三段第一、二句讲到“Students are supposed to read required textbooks and recommended books before class. Without reading them，they will find it very difficult to understand the class．”即：学生应该课前阅读指定的课本和参考书……。