Looking at him, we found( )hard to believe that he was well over seventy.
A.正确答案Cthat
B./
C.it
D.what
Looking at him, we found( )hard to believe that he was well over seventy.
Looking at him, we found( )hard to believe that he was well over seventy.
A.正确答案Cthat
B./
C.it
D.what