we found the work hard to do .

题目

we found the work hard to do .
为什么不能用we found the work hard for doing.
解释具体点...
还有..he went on sy that it was as important to respect others as ()by others A being respected B have seen C seeing D having seen
解释具体点...
错了,是A being respected B to be respected C to respect D respected

答案

we found the work hard to do .
因为工作是被做,不定式一些句型里可以表示被动,而for doing没有这个功能,所以不能替换
如the house is comfortable to live in
i have lots of homework to do
B to be respected 被别人尊重 要用被动语态
不选a是因为要跟as前保持一致