A、He has a bad tooth. B、He’ s leaving next week. C、He will be busy next week. D、He needs to find a job. C由男士所回答的“I will start my

W: Good morning. This is Dr. Allen’s office.
M: Good morning, I’ d like to make an appointment with Dr. Allen to have my teeth cleaned and checked. I’ d like to have it done this week if possible.
W: I’ ll see whether the doctor has time to see you this week. Have you been to see Dr. Allen before?
M: No, Dr. Allen was recommended by a friend of mine.
W: The doctor has no free time this week, Mr. Johnson. How about next week?
M: I’ m sorry, I will start my new job next Monday. I had hoped to have the appointment this week.
W: How about Saturday, the 23rd, at 10 AM?
M: That will be fine. Thank you.
Q4: What does Mr. Johnson want Dr. Allen to do for him?
Q5: Why does Mr. Johnson want an appointment this week?
Q6: Who recommended Dr. Allen to Mr. Johnson?