同义词转换
He is so strong that he can lift the heavy stone
he is ___________ _________ _______________lift the heavy stone.
说一下为什么啊

He is so strong that he can lift the heavy stone
he is ___strong___ ___enough__ ___to___lift the heavy stone.

很多英语语法不应该通过中文去诠释的。给你一个例子自己体会吧，高手都是这样子学习英语的。
She is so shy that I say nothing.
She is shy enough to say nothing.
读的英语多了，凭直觉就知道这样子了。在具体分析就是:]
so+adj+that+... 和adj+enough+to 的转化了，由于本题只有三个空格，如果不限制，还可以有其他种的同类转化。
如：He is ___not___weak ___enough__ ___to___lift the heavy stone.