单项选择题
A.giving a lot of lectures to students B.involving students in discussions C.asking students questions in class D.answering students' questions in class
A.Go over the lessons thoroughly. B.Understand the textbooks well. C.Do the reading assignments. D.Prepare an outline for discussion.
A.learn how to do research and write papers B.have some learning experience C.learn about the course concretely and clearly D.know how to participate in discussions