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people need to breathe . if they don't breathe , they will die . but how (1)..............is the air people breathe ? if they breathe dirty air , they will have (2) .........................problems . plant and animal (3)................clean air too . a lot of the things in our lives create (4)..............gases and make the air city ,like car , (5)............., and factories . dirty air is called ''polluted air '' . air (6) ............can also make our earth warmer .

harmful , beathing, pollution , motorbike, need, clean

Doraemon
8 tháng 3 2017 lúc 21:32

people need to breathe . if they don't breathe , they will die . but how (1)clean is the air people breathe ? if they breathe dirty air , they will have (2) breathing problems . plant and animal (3)need clean air too . a lot of the things in our lives create (4)harmful gases and make the air city ,like car , (5)motorbike, and factories . dirty air is called ''polluted air '' . air (6) pollution can also make our earth warmer .

harmful , beathing, pollution , motorbike, need, clean

Shen
8 tháng 3 2017 lúc 21:33

people need to breathe . if they don't breathe , they will die . but how (1)....CLEAN..........is the air people breathe ? if they breathe dirty air , they will have (2) ............BREATHING.............problems . plant and animal (3)......NEED..........clean air too . a lot of the things in our lives create (4).....HARMFUL........gases and make the air city ,like car , (5)....MOTORBIKE........., and factories . dirty air is called ''polluted air '' . air (6) ...POLLUTION.........can also make our earth warmer .

harmful , beathing, pollution , motorbike, need, clean

Anh Triêt
8 tháng 3 2017 lúc 21:35

people need to breathe . if they don't breathe , they will die . but how (1)......clean........is the air people breathe ? if they breathe dirty air , they will have (2) ..........breathing..............problems . plant and animal (3)......need..........clean air too . a lot of the things in our lives create (4).......harmful.......gases and make the air city ,like car , (5).....motorbike........, and factories . dirty air is called ''polluted air '' . air (6) ....pollution........can also make our earth warmer .

Quỳnh
8 tháng 3 2017 lúc 21:51

people need to breathe . if
they don't breathe , they will die . but how
(1)......clean........is the air people breathe ? if
they breathe dirty air , they will have (2)
..........breathing..............problems . plant and
animal (3)......need..........clean air too . a lot of
the things in our lives create
(4).......harmful.......gases and make the air city
,like car , (5).....motorbike........, and factories .
dirty air is called ''polluted air '' . air (6)
....pollution........can also make our earth
warmer


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