TEST 80Cambridge IELTS 15 · Questions 21–24Presentation about RefrigerationChoose the correct letter, A, B or C.Presentation about refrigeration21What did Annie discover from reading about icehouses?Awhy they were first createdBhow the ice was kept frozenCwhere they were located22What point does Annie make about refrigeration in ancient Rome?AIt became a commercial business.BIt used snow from nearby.CIt took a long time to become popular.23In connection with modern refrigerator, both Annie and Jack are worried aboutAthe complexity of the technology.Bthe fact that some are disposed of irresponsibly.Cthe large number that quickly break down.24What do Jack and Annie agree regarding domestic fridges?AThey are generally good value for money.BThere are plenty of useful variations.CThey are more useful than other domestic appliances.