(单选题)5: 第二次作业问题10 A: She's flying to Hong Kong. B: She's going to buy an air ticket. C: She's going to say good-bye to Bill. D: She's leaving for Hong Kong with Bill. ...

(单选题)13: 第一次作业问题8 A: He was seriously wounded in a mine explosion. B: He was slightly injured in a traffic accident. C: He was kept in hospital for a long time. D: He was fined for speeding. ...

(单选题)7: 第一次作业问题10（作业音频请到课程公告里下载） A: It's much more difficult than people think. B: It's believed to be the hardest optional course. C: It's too tough for some students. D: It's not as hard as expected. ...

(单选题)5: 第四次作业问题1 A: How do you do? B: Nice to see you. C: Hello D: Fine, thank you. ...

(单选题)19: 第三次作业问题A10 A: Twelve students took the exam. B: Forty students passed the exam. C: Twelve students failed the exam. D: Twenty-eight students failed the exam. ...

(单选题)13: 第三次作业问题A4（作业音频请到课程公告里下载） A: Her vacation lasted two weeks. B: Her vacation lasted three weeks. C: Her vacation lasted four weeks. D: Her vacation lasted five weeks. ...

(单选题)7: 第三次作业问题B5 A: Breakfast was ready before we left. B: We left without having breakfast. C: Before breakfast we were ready to leave. D: We left to get breakfast. ...

(单选题)1: 第三次作业问题B8 A: After it snowed, Jim washed his car. B: Jim was unable to wash his car because it was snowing. C: It began to snow right after Jim washed his car. D: Jim had to wash his car in the snow. ...

(单选题)5: 第二次作业问题7 A: Why are you late? B: The first part of the lecture is not good enough. C: It’s a pity you didn’t come earlier. D: You must apologize for being late. ...

(单选题)9: 第一次作业问题9 A: I did physics assignments slowly. B: I did chemistry assignments. C: I failed to do chemistry assignments. D: I found physics assignments easier. ...