57. A little knowledge is a _________ (危险的) thing.
56. There is a long _________ (历史) behind that building.
55. Sue always _________(分享) things with her friends.
根据下列句子及所给汉语注释,写出空缺处各单词的正确形式。每空只写一词。
54. You’d better let in some fresh _________ (空气).
43. A. excited B. satisfied C. happy D. guilty
42. A. Each B. Worst C. Part D. Best
41. A. mother B. student C. lady D. man