Part A Directions: You will hear 10 short dialogues. For each dialogue, there is one question and four possible answers. Choose the correct answer ― A, B, C or D, and mark it in your test booklet. You will have 15 seconds to answer the question and you will hear each dialogue ONLY ONCE. 听力原文:W: Excuse me, sir. Visiting hours are over now. You must leave, so your wife can get some rest. M: Pardon me, nurse. I didn' t hear the bell or I would have left earlier. Where did this conversation take place?