【正确答案】 B

【答案解析】[解析] 划线词词义是“向…欢呼，致贺”。
A项reported意为报道；例句：It is reported that 20 people were killed in the accident.这次事故据报道有20人死亡。
B项praised意为称赞，表扬。例句：The teacher praised her for her courage.老师赞扬了她的勇气。
C项proved意为证明；例句：The facts proved her assumption wrong.事实证明她的设想是错的。
D项caught意为抓住；例句：I caught him peeping at my paper.他偷看我的论文时，被我当场抓住了。
很明显B项正确。