Before the game started, Allen's friends believed he was ________ but he didn't feel ________.
A.sure to win; sure to success
B.sure of success; sure of it
C.sure to win; sure about that
D.sure about winning; sure to win
网友回答
C解析导解：be sure of/about(doing) sth.表示“相信，有……的把握”，be sure to do则表示对外界的判断，“一定会……”．