This problem is so difficult that we can't work it out.(保持句意
This problem is so difficult that we can't work it out.(保持句意
This problem is so difficult that nobody can work it out.(保持
The problem is so difficult that I can't work it out.同义句
This problem is so difficult that nobody can work it out.
the problem is so difficult( ) we can't work it out
1.The math problem is so difficult that I can't work it out.
英语改句子The math problem is so difficult that we can't work it
This Maths problem is difficult.I can't work it out.的同义句
the problem is very difficult.we can't work it out.(合并一个句)th
He is so w____ that he can work out this difficult problem e
The problem was so difficult that we couldn't work it out ea
The problem is so difficult that nobody can work it out(改为同义