解决英语同义句转换

题目

解决英语同义句转换
1.The water was so dirty that we couldn't drink it
The water was ______ dirty for us ______ drink
2.The child is so young that he can't put on his clothes
The child isn't _____ ______ ______ put on his clothes
3.The problem is too difficult for me to work out
The problem isn't _____ _____ ______ for me to work out
The problem is ______difficult _____ _____ ______ work out
4.The box is so heavy that he can't lift it
The box is ______ heavy ______ ______ _____ lift.

答案

1.too to
2.old enough to
3.easy enough to
so that i can't
4.too for him to