17．Since the beginning of the vacation，I　　　　 across the country，and my next stop is the Wuyi　 Mountains．

　　 A．had traveled　　 　 　B．will travel　　　　　 C．have been traveling　　 D．was traveling

16．Once again he didn’t hand in his homework _____ he had been given enough time to do it．

　　　 A．in case　　 　　　 B．as though　 　　　 C．so that　　 　　　　 D．even though

15．---They live on a busy road．　　 --- There ______ be a lot of noise from the traffic．

　　　 A．must　　 　　　　　 B．may　　　 　　　　 C．would　　 　　　　 D．could

14．_____ the chapter four times, I finally understood the author's theory．

　　　 A．Reading　　 　　　　 B．Having read　 　　　 C．To read　 　　　　　 D．Read

13．Ann ______ here any more．She left last month．

　　　 A．won't work　 　　　 B．doesn't work 　　　 C．hasn't worked　　　 D．isn't working

12．The conference aims to develop business and let people think about ______ they can have a　 positive influence on the planet．

　　　 A．why　　 　　　　　　 B．that　　　 　　　　 C．what　 　　　　　　　 D．how

11．-Can I ask you a few straightforward questions about yourself？

　　　 -No problem．I like ______ when people are open and direct．

　　　 A．that　　　 　　　　 B．this　　　　　 　　 C．it　　　　 　　　　　 D．them

10．They went on well at first but eventually everything ______ they had worried about happened．

　　　 A．which　 　　　　　　 B．what　　　 　　　　 C．that　　　 　　　　 D．when

9．You really need to go out and get some fresh air and sunshine．You ______ overworked　during the last 　two weeks． A．have been　　 　　　　　　　　　　　　 B．were　　 　　　　　 C．had been　 　　　　 D．would be

8．　 -Hi, David, I heard you had an accident this morning．

　　　 -Yes．Luckily, I hit the brakes in time ______ I would have been injured badly．

　　　 A．and　　　 　　　　 B．but　　　 　　　　　 C．or　　　　 　　　　 D．so