单词拼写（共10小题；每小题1分，满分10分）
根据下列句子及所给汉语注释，在句子右边的横线上写出空缺处各单词的正确形式。（每空限写一词）。
66. (不幸的)，the temperature on earth is increasing by one degree centigrade every year. 66.___________
67. I will wait for you at the (喷泉) . 67.___________
68.She was so angry that she (撕扯)the letter into pieces. 68. ___________
69.Quite a few young people would like to live a (单身)life. 69. ___________
70.Students are (禁止) to bring cellphones . 70. ___________
71.The broken (树枝)have been swept away. 71. ___________
72.There are twenty books______.(总共) 72.
73.Walk (直着)and the hotel is just on your left. 73.
74.It is good for you to have a little (巧克力). 74.
75.Are all the (乘客) aboard? . 75.
