The person he interviewed was ______ his former schoolmate.
 
【正确答案】 C
【答案解析】 no other than中,other than表示expect,与no连用,表示“不是别的(事),正是”,指事物;no more than表示“仅仅”;none other than指“不是别人,正是”,用以指人,符合题意。none the less指nonetheless,“尽管如此,依然”。故答案是C。