this question is very hard.None of us can work it out.(保持原意)this question is ______ hard for ________of us to work out

问题描述:

this question is very hard.None of us can work it out.(保持原意)
this question is ______ hard for ________of us to work out

this question is _too_____ hard for _____all___of us to work out too。。。to。。。结构

看来是too ...to 结构意思是太怎么样而不能,所以第一个空填too,从整个句子看是这个问题对于我们来说太难做不出来,是所有人,所以第二空填all。

too all

so all