It's ______for us to work out such a difficult problem in fi
It's ______for us to work out such a difficult problem in fi
How long () it () you to work out such a difficult problem?A
How long___it___you to work out such a difficult problem?
How long ___ it ___ you to work out such a difficult problem
He found () difficult to work out the problem in such a shor
you are clever.you work out the difficult problem in such a
it's not difficult 【 】us to work qut the math problem [ ] th
It’s difficult for me to work out the math problem(同义句改写)
It's difficult for him to work out this maths problem 同义句是什么
It's clever for him to work out the difficult math problem.单
He found it difficult to work out the problem.
This physics problem is too difficult for us to A work it ou