16. Xiao Wang,___White is waiting for you at ___school gate.
A.the;the       B.the;X       C.a;X       D.a;the
17. Many ___scientists wants to be ___ second Newton .
A.a;the       B . a;a       C. X; a        D. X; the
18. In Guilin, Mr . Green and Bill were so struck by ___ beauty of___ nature that they decided to stay for another two days .
A. X;X       B. X;the       C. the;X        D. the;the
19. You should pay more attention to your spelling .You've dropped ___"d" here.
A.an       B.the       C. X        D. a
20. ___1,000-meter-long bridge will have been built across ____ river by ___ June,2002.
A.The;the;X       B. An;the;X       C. The;a;the       D.An;a ; the 
21. We shall have___ English party at___Jason's on___eve of___Christmas.
A.a;X;the;the      B.an;the;the;X      C.an;X；the;X       D.X;theX;the
22. When___New Year's Eve arrives,I can still remember the wonderful nihgt in___winter of 2000.
A.the;the       B.the;X       C.X;the       D.X;X
23. ___elephant is a useful animal to humans.
A.This       B.A       C.The       D.That
24. As___,he goes out for a walk in the morning.
A.a rule        B.the rule       C.rule       D.rules
25. A policeman was assigned to the school crossing bacause ___traffic there was very heavy.
A.a       B.the       c.X       D.one
26. Yesterday Mary and Jane went to___town on___foot.
A.the;the       B.X;X       C.A;x       D.the;X
27. They came here by___sea and had a wonderful trip on___Queen ElizabethII.
A.X;the       B.the;X       C.X;X       D.the;the
28. These scientists sailed to___Atlantic and set up a station in___Antarctica.
A.the;the       B.the;X       C.X;X       D.X;the
29. ___Professor Wang said to me,"you're___most careful student."
A.The;the       B.The;a       C.X;a       D.A;the
30. Jerry is a woman of___great determination.She won't give up even if she has failed one thousand times.Now she has got ready to try___second time.
A.the;a       B.the;the       C.X;the       D.X;a

答案：1-5 CADCD 6-10 CCADA 11-15 DCBCD 16-20 DBCDA 21-25 CCCAB 26-30 BCBCD