----- Nội dung dịch tự động từ ảnh ----- Read the passage and mark the letter A, B, C, or D indicate the correct answer to each of the questions. Large forests are important to us in many ways. They give us wood for building and heating. They are homes for many kinds of plants and animals. And for many city people, forests are places to go for a vacation. People can learn about nature here. They can breathe fresh air and sleep in a quiet place. But there is one more reason why forests are important for everyone. The leaves on the trees in a forest help clean the air. Dirty air is a problem in many parts of the world. Without our forests, this problem might be much worse. Protecting forests is important for everyone. People should plant more new trees. They also help improve our environment. Question 33. What is the topic of the passage? A. Large forests B. New forest C. Taking vacation D. The importance of forests Question 34. What is a problem in many parts of the world? A. Dirty air B. Clean air C. Our forests Question 35. What helps clean the air? A. Animals B. Pollution D. The leaves on the trees in a forest C. Tree leaves Question 36. The word "They" in the last sentence refers to A. protecting B. animals C. people Question 37. Which of the following is NOT true? A. Forests give us wood for building. B. Forests are plants & animals' houses. C. Forests are places that are not good for everyone. D. Forests are places to go for a vacation. D. City people D. new forests