( D )51. A. most B. little C. few D. many
( A )52. A. but B. if C. when D. until
( D )53. A. shop B. factory C. farm D. place
( B )54. A. legs B. health C. feet D. hands
( C )55. A. must B. can’t C. can D. needn’t
( D )56. A. slowly B. carefully C. safely D. fast
( C )57. A. back B. front C. left D. opposite
( A )58. A. hit B. stopped C. cleaned D. bought
( B )59. A. her B. him C. it D. me
( D )60. A. school B. factory C. home D. hospital