3.听第五段材料,回答第18至第20小题. 18.Who cooks breakfast in Ann's family every day? A.Ann. B.Ann's father. C.Ann's mother. 19.How did they go to the hospital? A.By car. B.By bus. C.By taxi. 20.What did Ann do yesterday evening? A.She helped Bill with his science. B.She looked after her mother. C.She did her homework.