(单选题)20: 第三次作业问题16 A: They tend to stay within shouting or running distance of their parents. B: They should be aware of the potential risks in the playground. C: They may panic in front of high playground equipment. D: They c...

(单选题)19: 第三次作业问题17（作业音频请到课程公告里下载） A: It takes skill. B: It pays well. C: It's a full-time job. D: It's admired worldwide. ...

(单选题)18: 第三次作业问题20 A: Theater lobbies with uniformed security guards. B: Clothing stores where people are relaxed and off guard. C: Airports where people carry a lot of luggage. D: Hotels and restraurants in southeast London. ...

(单选题)17: 第三次作业问题15 A: They should help maintain the equipment. B: They should keep a watchful eye on their children. C: They should stop their children from climbing ladders. D: They should teach their children how to use the ...

(单选题)16: 第三次作业问题3 A: It's quiet in the restaurant. B: The price is high in the restaurant. C: The restaurant serves good food. D: The restaurant is too far from their school. ...

(单选题)15: 第三次作业问题4 A: At a booking office. B: In a Hong Kong hotel. C: On a busy street. D: At an airport. ...

(单选题)14: 第三次作业问题5 A: The woman has been complaining too much. B: The woman's headache will go away by itself. C: The woman should have seen the doctor earlier. D: The woman should confirm her appointment with the doctor. ...

(单选题)13: 第三次作业问题18 A: A mother with a baby in her arms. B: A woman whose bag is hanging in front. C: A lone female with a handbag at her right side. D: An old lady carrying a handbag on the left. ...

(单选题)12: 第三次作业问题1 A: The man could buy a shirt of a different color. B: The size of the shirt is all right for the man. C: The size the man wants will arrive soon. D: The man could come some time later. ...

(单选题)11: 第三次作业问题2 A: The woman is watching an exciting film with the man. B: The woman can't take a photo of the man. C: The woman is running toward the lake. D: The woman is filming the lake. ...