can you tell us the use ____the waste water from the factory?

问题描述:

can you tell us the use ____the waste water from the factory?
(you make of)为什么不填what you make of?

我们把句子改为陈述句,就能清楚的看出来是为甚么了.
can you tell us 这是疑问时要用到的,先不管,看后面:you make use of the waste water from the factory(意思是:你将工厂排出的污水回收利用)
很显然改为疑问句时,将 use 提前,后面照着写下去,因为本句中不缺任何成分,所以不加what