第35题: [单项选择]Questions 19 to 22 are based on the conversation yon have just heard. A. You can grow vegetables vertically. B. You can raise plants in a confined area. C. You can plant a wide variety of plants together. D. You can enjoy the beautiful scenery. 参考答案:B 答案解析:[听力原文] What is the main benefit of developing a square-foot garden