17.(A). The walls are much too thin.

　　(B). I’m not fond of the pattern on the walls.

　　(C). The walls are covered with all kinds of newspapers.

　　(D). I don’t mind the posters hanging on the wall.

　　18.(A). That course will have to be repeated.

　　(B). You definitely won’t have to take that course again.

　　(C). You repeated that course under special circumstances.

　　(D). Of course those circumstances will never be repeated.

　　答案与音频文本：

　　BB

　　17. The only thing that bothers me about my office is the wall paper.

　　18. Under no circumstances should you have to repeat that course.