9.听第13段材料,回答16-20题. 16.What can change people's feelings A.Education. B.Music. C.Colours. 17.What is the main topic of the passage? A.Food and colours B.Education and colours C.Colours and feelings 18.Why are some books green? A.Because green is good for the students'eyes. B.Because green is beautiful and interesting. C.Because most students like this colours. 19.How does the colour red make most people feel? A.Hungry. B.Comfortable. C.Angry. 20.What can make people want to leave fast food restaurants? A.Soft music B.Hard seats C.Green colour.