新概念英语第一册课后练习题答案：Lesson 120 Lesson 120 阅读理解 答案与解析 1. A。dentist 是“牙医”的意思，也是一种医生。 2. B。文章第一段提到but then his teeth began hurting badly… 3. C。从文章大意来看，Robinson 不知道该什么时候给牙医付费。 4. B。从二人的对话能够看出，对牙医的回答很是奇怪。 5. D。Robinson 早晚都是要付费的，还不如早一些，这样就能够在牙医的心目中或为一个gentleman 68 了。 英汉翻译 1. I went shopping after I had finished the housework. 2. I swept the floor after I had dusted the cupboard. 3. I went on holiday after I had taken the exam. 4. I left the office after I had finished the work. 5. I drank the milk after I had eaten bread. 6. He bought a new car after he had sold his old one. 7. They had swept the floor when I arrived. 8. I had made an appointment before I went to the dentist. 本文来源：https://www.wddqw.com/doc/f4f597f2591b6bd97f192279168884868662b84a.html