单选题 Questions 83-85 refer to the following message.

单选题 What is the speaker's main purpose?
A. To confirm an appointment
B. To deceive his listeners
C. To boast of his service
D. To provide options
【正确答案】 A
【答案解析】[解析] 83-85
Hello, this is West San Francisco Children's Healthcare calling to remind Ms. Michelle that you have an appointment on January 15th which is scheduled for 8:30 a.m. with Dr Smith. Please do contact us 24 hours in advance at 555-555-5555 if you must cancel your appointment.
It is very important that you respond to one of the following options.
To confirm your appointment, press (1).
To replay this message, press (2).
To cancel your appointment, press (5).
单选题 When is Ms. Michelle is expected to give a call if she is not convenient?
A. At 8:30 of January 15th
B. Before 8:30 of January 15th
C. At 8:30 of January 14th
D. Before 8:30 of January 14th
【正确答案】 D
【答案解析】
单选题 What is suggested by the speaker if Ms.Michelle wants to listen it again?
A. Contact 555-555-5555 and press (1)
B. Contact 555-555-5555 and press (2)
C. Contact 555-555-5555 and press (5)
D. Contact 555-555-5555 24 hours in advance
【正确答案】 B
【答案解析】