Ответ:
- 1. healthy — C. feeling well and not sick
- 2. cough — D. when you expel air from your lungs loudly and suddenly
- 3. sleep — B. a natural process when your body rests
- 4. exercise — A. a body movement that makes your body strong and fit
Ответ: 1-C, 2-D, 3-B, 4-A.