My father uses water-----(water)flowers after work.
问题描述：
My father uses water-----(water)flowers after work.
答
虚线上应该填to water.
固定搭配：use sth to do sth,比如use this knife to cut an apple.用这把刀切一个苹果.
至于两个water,第一个是水的意思,作名词；第二个是浇水,作动词.