听短文，选择最佳选项（听两遍）。 1. Who did the class help? A. An old woman. B. An old man. C. A sick women. 2. What did they do first? A. They painted the house. B. They cleaned the floor. C. They washed the dishes. 3.What did they plant? A. Some trees. B. Some grass. C. Some flowers 4. How long did they work? A. Two days. B. Three weeks. C. One month. 5. Why were they happy? A. Because they were paid. B. Because they made friends. C. Because they helped someone.