The folk song concert was so well _______ that all thetickets had been sold out on the first day

He worked hard at his study, and _______, he passed the exam easily.

Is Mount Tai the highest mountain in Shandong — I think so. It is 1,545 meters sea level.

Many of them turned a deaf ear to his advice,____they knew it to be valuable.[ ]

d to the rescue of the earthquake victims,the volunteers felt _____ but regret.