This piece of music is so difficult that I can't play it.(保持
This piece of music is so difficult that I can't play it.(保持
This problem is so difficult that we can't work it out.(保持句意
This sweater is so small that I can't wear it.(保持句意不变)
The wonderful piece of music is so difficult ————(play)
This problem is so difficult that nobody can work it out.(保持
This exercise is so difficult that few of us can do it.为什么后面
this question is so difficult that none of us can answer it
It is _question that i can't work it out.A.a so difficult B.
this is so difficult a question that none of us can answer i
1.The math problem is so difficult that I can't work it out.
The question is so difficult that I can't answer it(改为同义句)
the question is so difficult that I can't answer it.同义句