How can the water become vapour? What does she like do? 两个句子

How can the water become vapour?去掉the,
How can water become vapour?水如何才能变成蒸汽?
因为water是不可数名词,且在此表示泛指,因此不能加the.
What does she like do?改成 What does she like to do?她想干什么?
或:What does she like doing 她喜欢干什么?
还可去掉 like :What does she do?她是干什么的?
like doing sth.喜欢做某事,like to do sth.想做某事