6.In the USA, millions of old car tires are.......every year
A.thrown away B.threw away C.throwing out D.throw out
7.Old car tires can.......to make pipes or floor coverings
A.recycle B.be recycling C.be recycled D.recycling
8.Nowadays many people wear.......and sandals made from old car tires
A.trainers B.shoes C.wooden shoes D.slippers
9.Famers use animal dung for.......their fields
A.developing B.improving C.fertilizing D.making
10.They collect household an garden waste to make .......
A.soil B.compst C.fertilizer D.both b and c
11. .......is a wonderful natural fertilizer, it helps plants grow
A.compost B.animal dung C.garden waste D.all are collecters
12.In Britain, the milkman brings milk bottles to houses and collects
A.empty B.deserted C.full D.crowed
13.Then the empty bottles are cleaned and......
A.full up B.refilled C.reusing D.recycled
14.A milk bottle can be.......thirty times
A.recycled B.reparated C.reused D.filled up
15.Compost is made from......and garden waste
A.home B.house C.family D.household