Question 18 - 20 refer to following paragraph:

W: Hey, Ron, I heard you got a new job. How is it?
M: I really like it. The staff seems very friendly and the work is not too bad either. However, I am a little concerned about the distance. It’s a bit far from my place.
W: Oh, that’s too bad. Maybe it’s time for you to get a car.
M: I’ve thought about that, but then there’s the hassle of getting a driver’s license.

18. What does the woman recommend?

Hi, this is a message for Ms. Helen Kim. Ms. Kim, this is your dentist office calling to remind about your appoitment with Dr. White on Thursday at 11 a.m. I can see my appoitment book that you are scheduled for cleaning that day. Anyway, I'd like to remind you at this time that you need to arrive at least 10 minutes early to fill out some information. If by any chance you cannot make it to your appointment, please let us know at least two hours before your appointment. Have a nice day and we will see you this Thursday.
36. When is the receiver asked to call if she cannot make it to the dentist office?