-This physics problem is too difficult . Can you show me ______ , Wang Lin ?
-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
-This physics problem is too difficult . Can you show me ______ , Wang Lin ?
-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