Work in groups and role-play the following situations. <br/> Situation 1<br/> A: You are calling to invite your friend B to go to a barbecue this weekend.<br/> B: You are taking a shower at that time. Your mother C received the call.<br/> Situation 2<br/> A: You are calling to book a table in a hot pot restaurant while walking on a noisy road.(customer) <br/> B: You are answering the call, and you cannot catch the information clearly.(receptionist)