[解析]
(1)B.细节理解题。根据The king and his guards(侍卫)could not find their way back to the palace(王宫).国王和他的侍卫找不到回宫殿的路。可知,国王及侍卫找不到回去的路了,故选B。
(2)A.细节理解题。根据Before leaving,the king told the old man to go to the palace to repay him for his kindness.临走前,国王让老人去皇宫报答他的恩情。可知国王离开前让老人去他的宫殿,故选A。
(3)D.细节推理题。根据"It was delicious." 它很美味。可知老人吃了小鸟,故选D。