The old lady has developed a ________ cough which cannot be cured completely in a short time.
A) perpetual B) permanent C) chronic D) sustained
Hurricanes are killer winds, and their ________ power lies in the physical damage they can do.
A) cumulative B) destructive C) turbulent D) prevalent
A) overtraining syndrome should be treated as a serious illness
B) overtraining syndrome should be prevented before it occurs
C) an athlete with overtraining syndrome should take a lengthy rest
D) illness causing fatigue should not be mistaken for overtraining syndrome
