根据题意及所给单词的首字母或汉语提示，写出单词的正确形式，每空只写一词。

76. My favourite colour is          (红色) .

77. It often            (下雪) in winter in Harbin.

78. The small phone on the table is           (我的).

79. Is Mary           (听) to the music now?

80. Which month is hotter, September or            (十月)?

81. S          down and listen to me, please!

82. The teacher speaks so l          that we can hear him clearly.

83. Teahouse d           the changes in Chinese society in the past.

84. The house in the center of city is so expensive that I can’t a      it.