the problem is ___difficult for us ____.

问题描述:

the problem is ___difficult for us ____.
A so work out
B very too to be worked out
C rather too to work out
D quite too to work it out

答案是:C
the problem is _rather too __difficult for us _to work out___.
意思是:这个问题对于我们来说太难了.
PS:希望我的回答能够帮到你~