14：第三次作业问题10" /> A：It can reduce the number of passenger complaints B：It can make air travel more entertaining C：It can cut down the expenses for air travel D： It can lessen the discomfort caused by air travel ...

8：第三次作业问题7" /> A：Cheer herself up a bit B：Find a more suitable job C：Seek professional advice D： Take a psychology course ...

2：第三次作业问题20" /> A：He ran a red light and collided with a truck B：He sacrificed his life to save a baby girl C：He was killed instantly in a burning car D： He got married to Karen’s mother ...

10：第二次作业问题19" /> A：In 1981 B：In 1989 C：In 1990 D：In 2000 ...

12：第一次作业问题16" /> A：They are motorcycles designated for water sports B：They are speedy boats restricted in narrow waterways C：They are becoming an efficient form of water transportation D： They are getting more popula...

6：第一次作业问题12" /> A：11,500 B：30,000 C：250,000 D：300,00 ...

10：第四次作业问题6" /> A：Yes, please. B： Of course. C： Ok. D： Certainly ...

4：第四次作业问题10" /> A：The same to you B： See you. C： Take care D： So long. ...

18：第三次作业问题A9" /> A：It’s 11:00 now. B： It’s 11:15 now. C： It’s 11:45 now. D： It’s 12:15 now. ...

12：第三次作业问题B3" /> A：We’ll go to the party if we finish on time. B： We’ll go to the party after class. C： We went to the party after the exam. D： We’re going to have a party when the exam is over. ...