___ most of the earth’s surface is covered by water, fresh water is very rare and precious.

___ most of the earth’s surface is covered by water, fresh water is very rare and precious.

#31448

Although

Once

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_______is often the case,he succeeded in this examination again.

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What

Which

Take a taxi , _____ you'll miss your train .

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and

otherwise

I'm sorry you've been waiting so long，but it'll still be some time ________ Brian gets back.

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before

since

till

after

He misunderstood _____ I said.

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that

when

where

what

In some places, women earn money ________ men work at home and raise their children.

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and

when

while

though

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