20 câu hỏi
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Land pollution is responsible for damage done ___ natural habitat of animals.
with
for
to
of
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Americans throw ___ twenty-eight and a half million tons of plastic in landfills every year.
in
at
to
away
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Scientists have come up ___ new ways of saving energy.
with
on
to
out
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Thousands of people were exposed ___ radiation when the nuclear plant exploded.
in
at
to
away
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Waste water from many factories which is dumped ___ water bodies directly causes pollution.
on
into
out
by
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___ fumes from these vehicles are serious air pollutants.
Poisonously
Poison
Poisonous
Poisons
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___ thermal pollution happens, the water temperature in streams, rivers, lakes, or oceans changes.
Until
When
Before
As soon as
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Air pollution occurs when the atmosphere contains gases, dust, or fumes in ___ an amount.
unharmed
harmless
harm
harmful
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When radiation goes into the land, air, or water, it is called radioactive ___.
pollution
polluted
pollutants
polluting
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Too much use of electric lights in cities may ______ light pollution.
go
result
cause
lead
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If the temperature ____ rising, the polar ice caps will melt.
kept
keeps
has kept
will keep
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Because of ____ pollution, the bicycle may someday replace the automobile.
water
air
noise
soil
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Students should learn some practical ways that help to ____ pollution.
save
cure
reduce
shorten
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____ she left the party, Jenny said goodbye to the host.
Before
After
As soon as
Until
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People think that global warming ____ lots of problems in the future.
causes
is causing
will cause
has caused
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We saw many beautiful birds while we ____ in the lake.
fished
would fish
are fishing
were fishing
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The train arrived while/ as soon as Elie was having lunch.
while
as soon as
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Because/ Although the water is very cold in January, they go swimming anyway.
Because
Although
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My father goes jogging every morning before/ after he gets ready for work.
before
after
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I learned a lot about wildlife until/ after I visited Cuc Phuong National Park yesterday.
until
after