we find____ is very hard to makehim understand it

we find____ is very hard to makehim understand it chinese history is very hard to understand -The passage is too hard to understand . -Yes,---it's very s it is too hard to understand the voices It is sometimes hard to understand that an encouraging word The passage is quite hard to understand,isn't it? 一个初二英语问题It's too hard to understand the voices . hard it is I find it is hard to understand .understand 后还用加宾语吗? Dut it hard to understand to me! The question is very hard.We can't solve it. the book is very hard to understand 为什么要用 to? I found it hard to understand him . 中it 后可以加上is 吗?为什么?