单词拼写
根据下列各句句意和空白之后的汉语提示词，在答题卡指定区域的横线上写出对应单词的正确形式，每空只写一词。
66. Mr. Zhang, one of my _______ (同事), is strict with his students.
67. The fifth day of a week is _______ (周四).
68. This rule can’t be _______ (应用) to every case.
69. Don’t be frightened by the TV camera; just speak _______ (自然地).
70. The two film stars haven’t _______ (宣布) their engagement yet .
71. Oil is the raw _______ (材料) for plastic.
