按要求改写句子

题目

按要求改写句子
We use water for cleaning our classroom （对cleaning our classroom 提问）
We can save water by fixing dripping taps （对 by fixing dripping taps 提问）
We use paper to make paper planes 保持句意不变
We use paper ____ _______ paper planes

答案

We use water for cleaning our classroom （对cleaning our classroom 提问）What do you use water for?We can save water by fixing dripping taps （对 by fixing dripping taps 提问）How can you save water?W...