句型转换Theproblem is so difficult.Icon't work it out.The proble

句型转换Theproblem is so difficult.Icon't work it out. The probl it is difficult to work out the problem 对work out the proble the proble is different.I can't work it out the problem isn' 1.The math problem is so difficult that I can't work it out. the problem is so difficult（ ） we can't work it out The problem is so difficult that I can't work it out.同义句 The problen is difficult.I can't work it out. The math proble is too difficult for her to work out.(写出同以句） It is _question that i can't work it out.A.a so difficult B. This problem is so difficult that we can't work it out.(保持句意 i can't work out the problem.it's too difficult同义句转换 i have The problem was so difficult that we couldn't work it out ea