问题
选择题
He went back to the hall to try his_________at finding his lost gold watch，but never found it.
A．best
B．success
C．result
D．luck
答案
D
短语try one’s best(努力,尽力)后常接to do sth.;try one’s luck at doing sth.意为 “碰碰运气做某事” 。B 、C两项不符合题意。