we find (it) impossible to finish the work in a week.为什么用it?

we find (it) impossible to finish the work in a week.为什么用it? Is it _ for them to finish the project in a week (impossible I think it is impossible to finish the work in five days.为什么 翻译"I find it impossible that he should finish the work in tw It's impossible for ( )people to finish( )work in( )time. 1.I found it was impossible to finish the work in two hours It's impossible for us to finish the work in three days. We find it impossible to work out the problem by ourselves we found ___ impossible to finish the work in such a short t We had done ____ of the work.We will finish it in this week 4.It is impossible to finish the task ____.A.in such sort a It took us one week to finish the work.