那句话正确?Jack found it difficult to fall asleep after watching a horror film

问题描述:

那句话正确?Jack found it difficult to fall asleep after watching a horror film
还是Jack found it's difficult to fall asleep after watching a horror film?为什么?
两句话都对吗?一个是it,一个是it's

Jack found it difficult to fall asleep after watching a horror film
it正确,is要省略 ,因为一句话不能有两个谓语