53. In stores people usually touch things _______.

    A. they like            B. they want to buy

    C. that are beautiful       D. that are expensive

  52. It is not easy to feel ________ on your feet at first because you are too used to them.

    A. the grass            B. the sand

    C. the shoes            D. the rug

  51. By holding a glass ball in your hands, you can not feel _______ it is.

    A. how much         B. how cold

    C. how heavy            D. how smooth

  49. A. good news      B. pleasant stories C. bad news     D. true stories

  48. A. danger     B. science      C. life         D. disease

  47. A. necessary      B. unusual      C. ordinary     D. enjoyable

  46. A. what for       B. what else        C. why not      D. how long

  45. A. in newspapers  B. in books     C. in magazines D. on television

  44. A. a different        B. a usual          C. the same     D. the best