根据汉语提示或用所给词的适当形式填空
1. You're not blowing(吹)hard enough!
2.It's very cold today. I hope the temperature will rise by a few degrees_(度) tomorrow.
3. Many people go to Harbin to watch the Ice_(冰) Festival every winter.
4. My mother is too tired,and she is ina_ deep_(深的)sleep now.