試題詳解

49 What is the main idea of the article? 
(A) In order to fully understand students, teachers should sit in another teacher’s class every once in a while. 
(B) Students feel the classes boring because they are cheating and irresponsible. 
(C) In order to encourage students, teachers should tolerate students’ lying. 
(D) Teachers should allow students to have more control over their learning.