You should spend no more than 20 minutes on this task. You have bought a Walkman at an airport. On reaching home, you discover a fault with it. Write a letter to the airport authority explaining the situation, and ask that the problem be put right. You should write at least 150 words. You do NOT need to write your own address. Begin your letter as follows: Dear sir,
【参考答案】
[参考范文] Dear Sir, I wish to make a complaint about a ......