1.anti-pollution fighters
2.are...used for
3.warned .to smoke
4.cut down
5.know.about
6. give out
7.for helping
8. in danger
9.keep air cool
1.anti-pollution fighters
2.are...used for
3.warned .to smoke
4.cut down
5.know.about
6. give out
7.for helping
8. in danger
9.keep air cool