听对话，选答案。 1.What can robots do? A. Difficult jobs. B. Simple jobs. C. A and B. 2. Robots work and _______ like humans. A. study B. play C. make mistakes 3. In factories, robots can do _______ work. A. dangerous B. relaxing C. easy 4. Robots can help us with _______ in daily life. A. work B. housework C. homework 5. Sometimes,people think robots are like real persons but in fact, they are ______. A. animals B. plants C. machines