16.A) She couldn't have left her notebook in the library.

　　B) she may have put her notebook amid the journals.

　　C) she should have made careful notes while doing reading.

　　D) she shouldn't have read his notes without his knowing it.

　　17. A)she wants to get some sleep C) she has a literature class to attend

　　B) she needs time to write a paper D)she is troubled by her sleep problem

　　18.A)He is confident he will get the job.

　　B)His chance of getting the job is slim.

　　C)It isn't easy to find a qualified sales manager.

　　D)The interview didn't go as well as he expected.

　　Questions 19 to 21 are based on the conversation you have just heard.

　　19.A)He can manage his time more flexibly.

　　B)He can renew contact with his old friends.

　　C)He can concentrate on his own projects.

　　D)He can learn to do administrative work.

　　20.A)Reading its ads in the newspapers.

　　B)Calling its personnel department.

　　C)Contacting its manager.

　　D)Searching its website.