根据句意及所给中文提示或英文解释，写出句中所缺单词。
51. Children in the west usually wear▲  (特殊的) costumes with masks at Halloween.
52. Zhang Shaohan has a sweet▲ (嗓音), and many of us like listening to her songs.
53. People around the world love    ▲   (和平)and hate wars.
54. As we know,  ▲   (星期一) is the second day of a week.
55. Sorry, I didn’t know you. Would you please speak more    ▲   (清楚地)?
56. Now we are short of water and we should s  ▲   water in our daily life.
57. Peter’s father is very    ▲   (not free), so he does not have much time for his family.
根据句意，用括号中所给单词的适当形式或句子的语法要求填空。
58. My grandpa likes    ▲   (chat) with his friends under the big tree.
59. —Would you like some bananas?
—No, thanks. I    ▲   (eat) one already.
60. The style of this dress is popular, but I don’t like    ▲   (it) colour.
61. What a    ▲   (snow) day! The ground is covered with snow everywhere.
62. July 1^st is our Party’s    ▲   (ninety) birthday this year. We Chinese people are going to celebrate it.
63. Beijing is one of    ▲   (beautiful) places in China, and I have been there twice.
64.    ▲   (lucky), they escaped from the burning building with the help of the firemen.
65. We    ▲   (ask) to help our parents do some housework every day.