26. By moving the radar beam around slowly in circles, we can ____ the surroundings. 
  A. explore			B. expose 		C. exploit				D. expand
27. John doesn’t believe in ____ medicine; he has some remedies of his own. 
  A. standard			B. regular			C. routine				D. conventional
28. Anyone who has passed the entrance examination could____ college ____admission. 
A. reply to…for		B. supply to…to	C. apply for…for		D. apply to…for
29. In the Spring Export Commodities Fair the ___ of fine china attracted much attention of customers from all over the world.
  A. succession			B. array			C. string				D. procession
30. While traveling, I would like to spend much time___ the gift shops for souvenirs.
  A. to blow		 B. to browse			C. blowing			D. browsing