After a long walk the old man felt very A. luck B. tired C. relaxing

问题补充：

After a long walk, the old man felt very .

A. luck B. tired C. relaxing

答案：

解析：形容词辨析. Luck幸运;tired劳累的;relaxing放松的.句意:在长途步行后,这个老人感到很累.故选B.