This math problem is _____ that one.I can't work it out

This math problem is _____ that one.I can't work it out 1.The math problem is so difficult that I can't work it out. ---Is this math problem difficult? ---No, I can work it out This math problem is very easy.I can work it out.合并为一句 改错This math problem is very difficult but I can work out it. This problem is so difficult that we can't work it out.(保持句意 This Maths problem is difficult.I can't work it out.的同义句 This problem is too difficult.I can't work it out,and() 高中英语题i can't work out this problem .it is a most difficult o This problem is too difficult.I can't work it out,and(). This maths problem is not easy.I can't work it out. The problem is so difficult that I can't work it out.同义句