Điền từ vào chỗ trống

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B. Why
B. burning
leave wild flowers.
B. shouldn't
A. What
3. People are
A wasting
6 We
A. should
does the world need more food?- Because there are more people.
C. When
wild animals and plants.
D. How
D. destroying
D. need
C. cutting
C. want
7 We should
empty bottles and cans and recycle them.
A. make
B. produce
C. waste
D. collect
B.
Smoke from cars and motorbikes,
the air
A. pollutes
D. wastes
C. saves
D. produces
0.
A. leave
10.
A. any
A. in
When you see a dripping faucet, you should
eggs do his chickens produce?
A. How many
11. Mr. Hai also grows,
12. The population
13. We are burning
A. 1oo many
14. We are wasting too much,
A. wild animals D. plants
15. Smoke and trash are
it off.
D. turn
C. cut
D. save
B. How much
B. no
B. at
B, too much
C. How
D. When
C. on
fruit trees.
C. a few
the world is growing.
coal, oil and gas.
C. very much D. a litle
D. not any
D. of
C. forests
D. water
our environment.
A. doing
16.
A. Do
B. making
C. saving
D. polluting
throw trash in the street.
B. Shouldn't
C. Should
D. Don't
17. When you don't need a light,
it off.
A. keep
18. Don't
B. switch
C. pick
D. leave
wild flowers.
A. collect
19. The farmer
D. save
C. recycle
D. pick
a lot of rice.
A. does
B. makes
C. produces
D. saves
20. The
plow the paddy fields.
A. buffalo
B. buffaloes
C. chickens
D. A and B
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