The Earth is our only home, so we______care of it.
can
can't
must
mustn't
The Earth is our only home, so we______care of it.
can
can't
must
mustn't
_____ you help me to find information about the ecosystem of the Black Sea?
should
must
shouldn't
could
The global warming _____ lead to dramatic changes in climate.
should
can
can't
shouldn't
We ______ use less electricity and water.
should
could
shouldn't
can't
Factories and power stations _____ pump large quantities of harmful gases into the air.
have
can
should
must
Car owners _____ use unleaded petrol today or electric cars.
will
mustn't
should
could
Acid rain _____ kill fish in the lakes and rivers.
must
can
should
could
We ______ pollute water and air with toxic wastes.
mustn't
don't have
have
should
A lot of people ______ suffer from dangerous deseases in nearest future.
should
must
will be able
will
You ______ to be friendly to every living creature.
must
have
should
can
We wanted to take some paper bags but _______ find them anywhere
won't
couldn't
can't
wouldn't
No one in the world _____ buy ivory or fur.
should
shouldn't
can
can't
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