9. How high is the building?
10. She loves coffee.
11. What subject does Nam like the best?
12. My sister 's favorite summer is spring.
13. This is my sister 's book.
14. Whose is this car?
15. This car is too expensive that he can't buy it.
16. I'd like some milk.
17. You shouldn't drink that water.
18. She is a beautiful girl.
19. It's never hot in winter.