根據(jù)句意及漢語提示完成句子
1. If you want to be healthy ,you must take more____(運動).
2. Air travel is the most____(舒服的)way to travel long distances.
3. The family lived in a small house with no____(空間)for children to play.
4. People put their rubbish outside in the streets. As a result,there were many____(疾。.
5. In the past, his grandfather worked 12 hours a day, in dangerous and____(不健康的)jobs,
for very little money.