9. It is such a difficult problem _______ no one can work ou
9. It is such a difficult problem _______ no one can work ou
The problem is a bit difficult ,but he can ( ) to work it ou
This is so difficult a problem as no one can work out.as能不能换
Difficult _______ the problem is,we should try to work it ou
It is such a difficult problem___nobody can work out.
This physics problem is too difficult for us to A work it ou
the physics problem is too difficult for us____.A work it ou
this is such a difficult problem that few students can work
It is clever _ you ti work _ such a difficult maths problem
---Is this math problem difficult? ---No, I can work it out
It is such difficult work that we can't finish it in a shout
It is (such) difficult work that we can't finish it in a sho