He didn’t _________ me and lent me some money when I lost my job.    

The good-for-nothing graduate’s mind _______ when he learned that he could not get the graduation diploma because of his poor performance．

（2014年安徽省合肥市高三第三次教学质量检测）26. Some experts and educators agree that difficulties and hardships can ______the best in teenagers.【考点】考察动词短语辨析

She first _____ singing and dancing, but soon lost interest and became a businesswoman. 

 His first lecture is of great use to our development. But his latest one is ______ worth attending.