Drinking water having a healthy diet and taking exercise are all positive ways to you wh

问题补充：

Drinking water, having a healthy diet and taking exercise are all positive ways to you when you are working on a tight schedule.

A. relieve

B. refresh

C. liberate

D. comfort

答案：

A. relieve

(答案→)B. refresh

C. liberate

D. comfort

解析：选B考查动词辨析。句意：当日程安排紧张的时候，喝水、健康饮食和锻炼都是恢复精力的好办法。relieve“缓解，减轻”；refresh“使恢复精力，使感觉凉爽”；liberate“使解脱，使解放”；comfort“安慰”。根据句意应选B。