题目内容：

短文综合填空。

Do you know what American students have to do in their school? In America, at the beginning of the term, students must choose their1.c_______ and teachers first. While in China students usually have no chances（机会）to choose.

2.C__________ is very important for your grades in America. So at the first term, don’t choose too many courses, 3. o_____ you’ll feel very nervous and it may influence your study. Then you have to ask for some teaching plans. There is some information about subjects, time arranging (安排) , marks and4. t______. At the same time, you must choose the teachers. Different teachers have 5.d_______ teaching ways. If the teacher is called “killer” by the last grade, many students will give up choosing him. Because this kind of teacher will leave too6.m_______ homework, too many exams and give too low grades.

There is7.a_______ thing after you choose the courses and the teachers. It is hard for each student to buy textbooks. The textbooks in America are very 8. e_______. Each copy is about $30~50. In order to save money, many students buy some used textbooks, and some students usually borrow textbooks9.f_______ the school library. You must get ready before classes. In class, discussing is very important. The teachers10. e_______ you to raise questions or show your own opinions. They don’t usually ask you to sit well. 11. I_______, they allow you to sit or stand everywhere you like. They don’t give you much homework to do. You can learn some knowledge and do exercises by yourself.