Itisnouse_________topersuadehim________smokingbecausehehasbeenaddictedtoitsincehewasyoung.
A.trying, to quitB.to try, to quitC.to try, quitD.trying, quit在线课程A
这题考查非谓语动词：第一空是句型：It’s no use doing“做某事是无用的”，第二空考查词组：persuade sb to do，句意是“试图说服他戒烟是没有用的因为他年轻时就上瘾了。选A。