--the problem is too difficult ,can you show me ______ ------sure .

问题描述:

--the problem is too difficult ,can you show me ______ ------sure .
A.what to work it out B.what to work out it C.how to work it out D.how to work out it .

C.how to work it out
work out 算出,解出,有宾语 It,所以不选代词what 而选副词how
很高兴为您解答,fightout为您答疑解惑
如果本题有什么不明白可以追问,