--Mushroom. (蘑菇)
7. What kind of water should people drink in order to be healthy?
--Drink well water. (井水，健康的)
8. How do we know the ocean is friendly?
--It waves. (起波浪，招手致意)
9. Which can move faster, heat or cold?
--Heat, because you can catch cold. (追上冷，患感冒)
10. What man cannot live in a house?
什么人不能住在房子里?
--snowman(雪人)
11. What never asks questions but gets a lot of answers?
--dictionary (字典)
12. What question can you never answer "Yes" to?
--Are you dead? (你死了吗?)
13. You have it.You read it.There're some pictures in it?
--book(书)
14. A mouse has a large pocket.What is it?
--a kangaroo(袋鼠)
15. It has a head ，but no neck.It has a body，but no warmth.NO feet，but can travel?
--a car(汽车)
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