Role Play：In this part you will act as a role and complete three communicative tasks: listen to the speaker, ask the speaker three questions and then answer five questions.
Step 1. Now please listen to the speaker.
情景介绍
角色：你是Mr. Marten
任务：（1）和服务员Ellen谈论换房间和叫出租车的事情
（2）根据谈论的内容，回答相关问题
