We use water to clean our flats.("to clean our flats"划线提问)_____ _____ _____ use water _____?

问题描述:

We use water to clean our flats.("to clean our flats"划线提问)
_____ _____ _____ use water _____?

what do we use water do?

What do you use water for?

应该是 What do you use water for
这里的for 表用途
你们用水来做什么?