从方框中选择适当的选项补全对话。其中有一项是多余的。
| 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 this? |
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：__3__ It's one of the most important inventions of the 20th century．
A：They are great．__4__
B：They can do many things．They may take the place of humans in some work situations．
A：1hat sounds good．__5__
B：Yes，I think so．
A：Oh，I see．