根據(jù)句意及首字母或括號(hào)里的漢語(yǔ)或單詞提示，把所缺單詞寫(xiě)在橫線上，并注意其變換形式。

66. He failed his math examination because of his            (care) work.

67. The art museum _________ (成功) in displaying the new paintings.

68. As students, we are s            to obey the school rules.

69. It's             (danger) to play football in the street．

70. Mary said she             (更喜歡) reading a book to watching TV.

71. There is h__________ any food in the fridge. Let’s go and buy some.

72. She has never made so many m            in answering such easy questions.

73. The lift can take us to the             (thirty) floor to see the nice scenery.

74. Her mother is Chinese and her father is             (Canada).

75. I like cooking. I think it is a good way to             (使…放松) myself.

Sina said she ______ to school the next Sunday.

　　A wouldn’t  go    B. isn’t go    C. didn’t go   D. won’t go