从方框中选择适当的选项补全对话。其中有一多余的。 A. I am making a model robot. B. Who are you? C. Yes, I do. D. What can robots do then? E. Do you think that robots can do better than humans? F. Who is that? A: Hello! May I speak to Maria, please? B: This is Maria speaking. 1______ A: This is Michael. Maria,could you practice the violin with me? B: Sorry, I can't. 2______ A: Do you like robots? B: 38 It's one of the most important inventions of the 20th century. A: They are great. 3______ B: They can do many things. They may take the place of humans in some work situations. A: That sounds good. 4______ B: Yes, I think so. A :Oh, I see.