I find that it it hard for him to work out the problem.句型转换I find __ __ for __ to__the problem__.

I find that it it hard for him to work out the problem.句型转换
I find __ __ for __ to__the problem__.

I find it hard for him to work the problem out.
我发现解决这个问题对他来说很难.

I find it hard for him to solve the problem out.

I find it hard for him to work the problem out.

I find _it's_ _difficult_ for _him_ to_work_the problem_out_.

i find it hard for him to work out the problem.