1. All the plan was _______ (打乱)by the sudden change of the weather.
2. He prefers to work ________（在户外）, for he can have more time to get close to nature.
3. It will be a long time for him to _______（恢复）from the bad cold.
4. When I saw him in the street，I stopped and smiled，but he _______ (不理会) me and walked on.
5. The snow is very _______ (松的) and there is a lot of air in it.
