choose the best answer(A, B, C or D)
1.If we_waste poper, we will save a lot of trees.
a.repeat b.recycle c.rewrite d.remark
2.you can save money while shopping by only buying_you need.
a.what b.this c.it d.that
3.what can we do_air pollution?
a.reduce b.to reduce c.reducing d.to reduing
4.why do you often forget to_the lights when you go of the classroom?
a.turn on b. turm off c.close d.shut down
5.if we plant more trees in the schoolyrd, the school will become a_place.
a.darker b.greener c.dirtier d.more polluted
6.do you think we should put a_bin in every classroom in order to keep it clean?
a.reusable b.recycled c.recying d.recyclable
7.my brother and i will give last year's clother to-instead of throwing them away.
ashop b.people c.chairity d.survey
8.next week our class is having a discussion about finding_ways to reuse old items before throwing them away.
a.interesting b.surprising c.useless d.creative
9.it is a good idea to_our clothes with our friends or cousin.
a.change b.swap c.turn d.send
10.if people turn off all electric appliances in one hur all over the worrl, they can save lots of_
a.electric b.electrical c.electrician d.electricty
11.you should put the food in a reusable box_plastic bags.
a.by b.instead of c.because of d.without
12.if we use_paper, we will save a lot of trees.
a.fewer b.less c.more d.much
13.don't throw rubbish intothe river becayse you will become_
a.greener b.dirty c.cleaner d.fresher
14.if there is a rubbish bin in every class, the classroom will become_
a.harmful b.lighter c.dirtier d.cleaner
15.if we all use_bags, we will help the environment.
a.new b.cheap c.reusable d.reduced
16.this newspaper is made of_paper.
a.recycle b.recycled c.old d.waste
17.please collect all the recyclable materials, and take them t the_
a.recycle b.recycled c.recyclable d.recycing
18.reduce, reuse, recycle is said to encourage people to waste less, bu using less and using things again, in order to_
a.harm b.damage c.pollute d.protect
19.these three Rs_reduce, reuce and recycle.
a.stwnd up b.stand for c.ask for d.means
20.if you have old clothes, will you give them to those_?
a.needs b.to need c.for needing d.in need
