阅读对话，判断正误，正确的用“√”表示，错误的用“×”表示。 A: Yang Ling, what did you do last Sunday? B: I visited Liu Tao's grandparents. A: Where do they live? B: They live in a small town near Nanjing. They have a really nice house. I went there with Su Hai, Su Yang, Gao Shan, Liu Tao and Ben. They were very glad to see us. Liu Tao's grandpa showed us a lot of stamps from different countries. His grandma cooked us a nice lunch. We liked the food very much. A: What did you do there? B: In the morning, we cleaned their house. In the afternoon, we worked in their garden. Su Hai and Su Yang watered the trees and flowers. Liu Tao and Gao Shan picked apples. Ben and I planted some trees. We worked for about two hours (小时). A: Were you tired? B: No! I like working in the garden. We had a really good time. A: Great! I'd like to visit them, too. (     ) 1. Gao Shan and Yang Ling visited Liu Tao's grandparents last Sunday. (     ) 2. On the farm, Yang Ling planted trees. (     ) 3. Liu Tao's grandma cooked a nice lunch. (     ) 4. Yang Ling and Su Hai planted flowers. (     ) 5. They worked in the garden for about two hours.