请听下面5段对话，选出最佳选项。
1. What’s the probable relationship between the speaker
A . Host and guest. B .Waiter and customer. C. Husband and wife.
2. Where does the conversation probably take place
A. At a hospital. B. At an airport. C. At a post office.
3. Why will the woman go to London
A. To have a holiday. B. To study. C. To visit her friend.
4. What will the robot do while Daniel is at school
