The writer has used American Indian languages as an example to show that they are .A. just ——青夏教育精英家教网—

53. The writer has used American Indian languages as an example to show that they are________ .

A. just as fully developed as some well-known languages.

B. more developed than some well -known languages.

C. more complex than some well - known languages.

D. just as old as some well - known languages.

1-3:BCB 4-6:CBA 7-9:ABC 10-12:CBC 13-15:ABA

16. 1718 17. the 1930’s/1930s 18. the elderly 19. the third floor 20. cigarette

21 - 25: DBCDA 26 - 30: BCADC

31. The; 32. them; 33. Compared; 34. that/who;

35. more;36. which; 37. encourages;38 since;

39. contributions; 40. abroad;

41 -45: BCDAB 46-50: CDBAD 51 ?55:CAADB

56-60: BCADF

One possible version