30. Roses need special care _____ they can live through winter.　

A．because　 　　　　 B．so that　　 　　　　　 C．even if　 　　　　　 D．as

29．_______you’ve tried it, you can’t imagine how pleasant it is.　

　　 A．Unless　　 　　　　 B．Because　　 　　　 C．Although　　 　　 D．When

28．He　　　 as a national hero for winning the first gold medal for his country in the Olympics.

　 　 A．regarded　 　　　　 B．has regarded　 　　 C．was regarded　　　 D．had been regarded

27．All possible means ______. However, nothing can _____ him dying of lung cancer.(肺癌)

　　 A．has tried; stop　　　　　 　　　　　　　　　　 B．have been tried; keep

　　 C．has been tried; prevent　　 　　　　　　　　 D．have been tried; stop

26．The number of students in our school ____ over 6, 000． A number of them ______ from other counties.

　　 A．are; are 　　　　　　　 B．is; is　 　　　　　　　 C．are; is 　　　　　　　　 D．is; are

25．The old lady lives ______ in the ______ mountain village, but she doesn’t feel _____ at all.

　　 A．alone; lonely; lonely　　　 　　　　　　　　　 B．lonely; alone; lonely

　　 C．lonely; lonely; alone　　　　　　　　 D．alone; lonely; alone

24. Charles Baggage is generally considered _______ the first computer.

A．to invent　 　　　　 B．inventing　　 　　　 C．to have invented　 D．having invented

23．With so many people _____ the Internet, it is difficult to see online movies at the same time.

　 A．surf　　　　　　　　　　 B．to surf　　　　　　　　 C．surfing　　　　　　　　 D．surfed　

22．Parachuting is quite _______ experience; let me tell you.

　 　 A．the　　　　 　　　　 B．/　　　　 　　　　 C．a　　　　 　　　　 D．an

21．The room was almost empty _____ a chair or two.

　 　　 A．except for　　 　 B．except that　　 　　 C．but　　　　 　　　 D．except