15.??The plain occupies the west, south and central parts of the continents, though considerable variations are to be found over so _____ an area. A. expensive B. expansive C. extensive D. intensive ...

10.??He looked up and saw that the moon was _____ the trees in the east. A. in B. above C. on D. among ...

5.??How long does it _____to travel from Xi’an to Guilin? A. use B. cost C. spend D. take ...

25. The wine is _____ grapes. A. made in B. made of C. made from D. made by ...

20. Sometime he eats too much and sometimes he eats noth?ing. He goes from one _____ to the other. A. extreme B. limit C. excess D. habit ...

14. She is an _____ housekeeper and feeds her family cheaply. A. economic B. economical C. enormous D. effective ...

8. Your story _____too good to be true. Few people believe it. A. heats B. listens C. sounds D. looks ...

2. Trade Union representatives are chosen by _____; all the members have a vote. A. chance B. choice C. election D. selection ...

19. We naturally _____ Einstein with the Theory of Relativity. A. accomplish B. appreciate C. accompany D. associate ...

6. The new _____ line of the factory can produce 100 bicycles every day. A. assembly B. working C. collection D. producing ...