第二版新视野大学英语读写教程答案全集(一到四册)(8)

4. By that time, her father’s health had become poor. His breathing was difficult; he had to rest very often when he was climbing stairs. It was not unusual for him to cough for an hour.
5. Money that should be spent fo
r food goes instead to the tobacco companies. As a result, over time, people starve themselves of both food and air, effectively weakening and h