17. Where do bamboos usually grow? a. highlands b. lowlands c. wetlands d. playgrounds 18. Which of the following bamboo is not used? a. houses b. fences c. fish traps d. laptops 19. What is used for posts and beams of houses? a. split bamboo b. whole bamboo c. bamboo leaves d. bamboo shoots 20. Which is used for roofs, walls, and floors? a, split bamboo b. whole bamboo c. bamboo shoot d. bamboo leaves 21. How many paragraphs does the selection have? a. one b. two C. three d. four 22. What is the topic of the second paragraph? a. uses of bamboos c. what bamboos are b. kinds of bamboos d. parts of a bamboo house 23. For numbers 23-25, what are the different uses of bamboos mentioned in the selection? Choose three from the given choices. 24. a. building houses c. making fish traps 25. b. building cars d. making​