单选题 Section C In this section, you will hear one passage. At the end of the passage, you will hear four questions. Both the passage and the questions will be spoken only once. After you hear a question, you must choose the best answer from the four choices marked A), B), C) and D). Passage Questions 7 to 10 are based on the passage you have just heard. Unit 1 Passage.mp4 题干请听音频