单项选择题
W: Where do you think you lost the wallet M: I don’t have any idea I had an appointment with Dr. Baker at nine o’clock. W: What time did you leave his office M: At about 9:30 or 9:35. Then I went to the department store. After that I got into a taxi. W: Isn’t it possible that it could have slipped out of your pocket in the taxi M: I just don’t know. Anyway, I could never find that same taxi again.
What are they talking about().
A．Losing money． B．Dr．Baker. C．Taxi.
单项选择题 Where is Mr.．B1ack().
单项选择题 When are they leaving().
单项选择题 Why won’t Helen go to the concert().
