Why问句与喜好表达 — 英语阅读题

Read the passage and answer the question. In our school, different students like different subjects. Lily likes Art best because drawing pictures makes her happy. Tom's favourite subject is PE, because he can run and play games there. Kitty likes Music, because singing English songs is fun for her. Ben doesn't like Maths very much, but he likes Science, because doing experiments is interesting. Miss Li asks them, "Why do you like your favourite subjects?" They all say, "Because they are fun!" Question: Why does Kitty like Music? (You may answer in English or Chinese.)