Water is very important to people. We must drink water every day. We can't live without water. Water is everywhere around us. At home, we use water to wash clothes， to wash dishes, to cook meals, to clean the flat, to make drinks, to clean our teeth, to have a bath and so on.
At work， people use water to put out fires, to grow vegetables， to make things in factories and so on. Water is important to us, isn't it?
However， there isn't much water on the earth. It is very valuable (珍贵的). We must save it. If we waste too much water， one day in the future, the last drop of water on the planet will be our tear (眼泪).
根据短文内容回答问题。
(1). What do we use water to do at home?
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(2). Can we live without water?
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(3). Is there much water on our planet?
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(4). Is water very valuable?
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