59. He had tried everything but it made little______ .

　　A. use 　                     B. good 　                   C. difference 　           D. result

58. There are thirty-two ____ in our school.

       A. woman teacher  B. women teacher   C. women teachers D. woman teachers

57. The population of Beijing is ____ than that of Xi'an.    A. more  B. larger  C. fewer  D. small

56. I have made ____ with Billy.        

A. friends              B. friend        C. a friend             D. the friend

55. Ten years had passed. I found she had ____. 

A. a little white hair      B. some white hair       

C. a few white hair        D. a few white hairs

54. This letter was sent by ____.

A. my father friend                                                 B. my father friend's     

C. a friend of my father's                                  D. a friend of my father

53. The laboratory assistant recorded the ____ reactions（反应）.

       A. mouses'                    B. mice                        C. mices'                      D. mice's

52. They are ____.              

A. mathematics student                              B. mathematic students

C. students in mathematics                         D. mathematics students

51. ____ is needed in cold countries.

       A. A lot of clothes                              B. Much clothing 

C. Many a cloth                                        D. Lots of clothes

50. There are two ____ in our class.           

A. Liu            B. Lius           C. Liu's          D. Lius'