A) dirty air
B) dirty water
C) clean air

A) playing video games.
B) watching TV all night
C) football feild

A) to remove dirty and germs
B) to make them wet
C) to remove dirty and germs

A) cars
B) flowers
C) trees

A) 5 – 6 hours
B) 7 – 8 hours
C) 9 – 10 hours.

A) mid night
B) every day
C) morning and evening

A) burning more garbage.
B) planting more trees
C) using more cars

A) break time
B) eating lots of candy
C) playing video games.

A) to keep warm
B) to prevent spreading germs
C) to be loud

A) cooking at home
B) factory smoke
C) listening to music.

A) Miss Hope
B) Mr. Prince
C) Miss victoria

A) dancing
B) stealing
C) football