用所给单词的正确形式填空（共10小题，每小题1分，满分10分）

At the same time we are taking measures to _____________ our natural resources.
The factory pours a lot of waste into the river and now the _______water is not fit to drink.
They two have been _____________ about the problem for about half an hour, but neither is willing to give in.
Some local families will provide ___________ for the exchange students.
The hurricane was really _______________.Many people were scared.
Considering there are many people in developing countries still don’t have enough to eat and no place to live in, many countries agree to work togehter to reduce ______________.
Honey, take your coat with you. Last night it snowed heavily and it might be ______________ cold today.
Do you know who ____________________ the computer?
The Japanese hold the view that the types of blood are related to people’s characters, so they take them ________.
With many forests __________ , animals have lost a lot of inhabitants.