听力原文：W: Hi, MikE.This is Sally Harris from Four Seasons Heating. I'm calling to let you know that the part you have been waiting for is in. Should I send someone over today to install it? M: Absolutely. We've been freezing here without using the heating system over the weekenD.I never realized that our heating system would break down during the coldest month of the year. W: This kind of problem happens a lot. I think I can have one of our staff over there by noon. He will call from his mobile phone when he' s on his way. M: Thanks a lot. It will be much warmer tonight. What is the purpose of Sally' s call? A.To inform. a customer about a new cooling system B.To inform. a customer that a component has been delivered C.To inform. a customer about a hot product D.To inform. a customer about the sales figures
A.W: B. What C.To D.To E.To F.To
【参考答案】
B 解析： 通过题目可以知道Sally是打电话的人。一般打电话的目的会在对话的开头部分就出现，本题也是这样。如果......