单选题
I only know the man by ______ but I have never spoken to him.
A. chance B. heart C. sight D. experience
【正确答案】
C
【答案解析】[解析] 四个词均可与by连用。其中,by chance表示“偶然地,意外地”;by heart指“熟记”;know sb.by sight.意为“见过面,面熟,仅熟悉”;by/from experience是指“凭经验,从经验中”。从后半句看,显然C项符合要求。