Wecanneverexpectbluerskyunless

We can never expect bluer sky unless we create less polluted world.

A．a; a	B．a; the
C．the; a	D．the; the

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--- Haven’t you heard the news?
--- What news?
--- Some of the workers are on ____ march while others are on ____ strike.

A．/; the

B．the; /

C．/; /

D．the; the

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---Jenny, I think I’ll just have some coffee for a change．
--- ____．The coffee I bought yesterday is in the cupboard．

A．Change it, please	B．Never mind
C．With pleasure	D．Help yourself

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----I didn’t realize how popular the restaurant was until I made a reservation the other day.
----I beg your pardon, but when ?

A．was you realized it	B．it was that you realized it
C．you realized it	D．was it that you realized it

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What is even more important is_____ the earth cooled down, water began to appear on its surface.

A．that

B．that as

C．which

D．which as

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---How do you look at the issue?
---My point is that our government _______ make the public aware of the seriousness of water shortage.

A．is supposed to	B．contributes to
C．is committed to	D．is devoted to

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