基本信息
1. how does the man choose to post the letter. a. by express post. b. by normal post. c. by air post. 2. where does the woman advise the man to change money? a. at the airport. b. at a bank. c. at a supermarket. 3. what does the man want to buy? a. a mobile phone. b. a camera. c. an mp4 player.