He his sister to give up the plan for cycling along the Mekong River, but failed.
A. persuaded
B. tried to persuade
C. advised
D. Both B and C
网友回答
A. persuaded
B. tried to persuade
C. advised
(答案→)D. Both B and C
解析：原句意思是，他劝他的姐姐放弃骑自行车沿湄公河旅行的计划，但是失败了。根据“but failed”可知，劝说失败了，persuade sb. to do sth. 指说服某人做某事，与下文矛盾，故排除A，try to persuade sb. to do sth. = advise sb. to do sth.所以选D。