这句英语句型改变怎么做?

问题描述:

这句英语句型改变怎么做?
He found that watching cartoons was interesting.(保持愿意不变)
He found ------------- interesting-----------watchcartoons.
每格限填一词

He found it interesting to watch cartoons.
=He found that it is intersting to watch caroons
=He found that watching cartoons was interesting