根据句意及所给汉语提示完成单词。
81. It must be great to feel the beauty of _________ (自然) on a clear autumn afternoon.
82. My father and I had a ___________ (严肃的) talk about my study last night.
83. The weather report says the temperature will be ___________ (低) than today.
84. Do you know how long it has been in (使用、服务)?
85. 一I think winter is a beautiful season, _________ (尤其)when it snows.
—Me, too.