按要求改写句子。
1．Wood comes from trees.（同义句转换）
Wood ______ ______ trees.
2．We should waste water.（改为否定句）
We ______ ______ water.
3．We shouldn’t drive too much because cars use a lot of energy.（同义句转化）
We shouldn't drive too much because cars use ______ ______ energy.
4．We use water to clean things.（改为一般疑问句）
______ you ______ water to clean things?
5．Most of the energy comes from coal and oil.（对画线部分提问）
______ ______ most of the energy ______ from?
6．We can reuse a plastic bottle to make a toy.（对画线部分提问）
______ ______ you reuse a plastic bottle to do?
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