12.聽下面一段對話,回答第 17至 20題. 17.Where is Taylor? A.On the Great Wall. B.In a zoo. C.At a supermarket 18.How many people does Taylor mention to his mum? A.One. B.Two. C.Three. 19.What does Taylor's mum want Taylor to do? A.Go back to school. B.Buy some ice cream. C.Take some photos 20.How does Taylor feel about the trip? A.Bored. B.Pleased. C.Surprised.