I found it difficult.等不等于 i found it is/was difficult?

问题描述:

I found it difficult.等不等于 i found it is/was difficult?
kankan
I found it difficult to solve the problem.等不等于 i found it is/was difficult to solve the problem?

应该等于
find的用法
find+it+adj
find(that可以省略)+句子