概括句意
Some students prefer a strict teacher who tells them exactly what to do. Others prefer to be left to work on their own. Still others like a democratic discussion type of class. No one teaching method can be devised to satisfy all students at the same time.
The main idea of this paragraph is __________.
A.Most of the Students Would Like to Be Left to Work on Their Own.
B.Students are captious （挑剔的）
C.Each Student Likes Different Teaching Method
D.The Teaching Method is Difficult to Satisfy All Students at the Same Time
正确答案：D
答案解析：最后一句话对整个段落进行总述，是主题句，因此选择D.