答案是D,hold
holdtheattention是吸引注意力的意思
如下面的例子
Tobeagoodteacher,youneedsomeofthegiftsofagoodactor;youmustbeabletoholdtheattentionandinterestofyouraudience;youmustbeaclearspeaker,withagood,strong,pleasingvoicewhichisfullyunderyourcontrol;andyoumustbeabletoactwhatyouareteaching,inordertomakeitsmeaningclear.