Question 4 - 6 refer to following conversation:

Hello, Norman. This is Jina calling from the general affairs office. (74) You have probably noticed that there's a problem with the heating on your floor. I wanted to let you know that I have already called a repair company and arranged for the system to be fixed today. (75) The repair workers should arrive by 10 a.m. and they expect to be finished around 3. I told them that this would be perfect as you will be welcoming clients to your office at 4. I know that it's extremely cold today, so (76) I'll come up to your department at around 11 a.m. and give each employee one of our company jackets. This should help to keep them warm until the repairs are done.

4. What is being repaired?

(92) This is an important announcement for anyone waiting to board Flight 321 to Montreal. Due to the cold temperatures, some extra maintenance is being carried out on the aircraft's engines. (93) This will result in a delay of around 45 minutes. We do not anticipate any further delays to this flight. Please be ready to board the aircraft from Gate 17. Boarding will commence at approximately 7:45 p.m. and (94 )the new departure time will be 8:15. We apologize for this inconvenience. Please speak with an airline employee at your departure gate if you have any questions. Thank you.

Hello, Ms. Gardiner. This is Anthony Costas calling from Europa Travel Agency. (98) As you requested, I changed the date of your Zeus Airlines flight. (99) You'll be taking the flight that departs at 11:35 A.M., instead of the one that leaves at 4:55 PM. Your ticket is still for economy class, and the same baggage allowance applies. You can print your ticket at the airport by using the self- service check-in booths in the departure terminal. (100) However, I'd recommend just checking in on the Zeus Airlines Web site 24 hours before your flight. It's a very quick and convenient process. I hope you have a safe flight and an enjoyable vacation.