9. A) The man is usually the last to hand in his test paper.

　　B) The man has made a mess of his midterm exam.

　　C) The man has bad study habits.

　　D) The man is a diligent student.

　　10A) The man will drive the woman to school.

　　B) The man has finished his assignment.

　　C) The man is willing to help the woman.

　　D) The man is losing patience with the woman.

　　Unit Four

　　1. A) She knows where Martha has gone.

　　B) Martha will go to the concert by herself.

　　C) It is quite possible for the man to find Martha.

　　D) The man is going to meet Martha at the concert.

　　2. A) The air pollution is caused by the development of industry.

　　B) The city was poor because there wasn't much industry then.

　　C) The woman's exaggerating the seriousness of the pollution.

　　D) He might move to another city very soon.

　　3. A) The man should work harder to improve his grades.

　　B) The man will benefit from the effort he's put in.

　　C) It serves the man right to get a poor grade.

　　D) It was unfair of the teacher to give the man a C.

　　4. A) She can make a reservation at the restaurant.

　　B) The man should decide where to eat.

　　C) She already has plans for Saturday night.

　　D) The man should ask his brother for suggestions.