31．　　　　 from other continents for millions of years, Australia has many plants and animals not found in any other country in the world.

　　　 A．Having separated　　　　　　　　　　　　　　　　 B．Separating

　　　 C．Being separated　　　　　　　　　　　　　　　　　 D．Having been separated

30．-Can you come down a little? I usually buy things here.

　　　 -Sorry.　　　 .

　　　 A．It’s one price for all　　　　　　　　　　　　　　 B．It’s up to you to decide

　　　 C．You are welcome here　　　　　　　　　　　　　 D．It just depends

29．Nobody has any idea that how long it will be before the hostages　　　　 .

　　　 A．are freed　　　　　　 B．will be freed　　　　 C．are to be freed　　 D．have been freed

28．The chief reason for the population growth isn’t so much a rise in birth rates 　　　　a fall in death rates as a result of improvements in medical care.

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

27．We believe that　　　 to a free trade destroy wealth and benefit no one in the long run.

　　　 A．attempts　　　　　　　 B．administration　　　 C．barriers　　　　　　　 D．procedures

26．-How do you think I should receive the reporter?

　　　 -　　　 you feel about him ,try to be polite.

　　　 A．How　　　　　　　　　 B．What　　　　　　　　　 C．Whatever　　　　　　 D．However

25．They 　　　　a certain amount of working experience through voluntary work.

　　　 A．accumulated　　　　 B．accomplished　　　 C．abandoned　　　　　 D．attempted

24．The boss said to the secretary, “If you work well ,you　　　 　have a rise.”

　　　 A．must　　　　　　　　　 B．shall　　　　　　　　　　 C．would　　　　　　　　 D．ought to

23．Studying abroad is quite different from life in China. It took me nearly half a year to 　　　the language problem and culture shock.

　　　 A．turn over 　　　　　 B．look over　　　　　　 C．go over　　　　　　　 D．get over

22．-How come a simple meal like this cost so much?

　　　 -We have 　　　　in your bill the cost of the cup you broke just now.

　　　 A．added 　　　　　　　　 B．fined 　　　　　　　　 C．charged 　　　　　　 D．contained