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Alow-carbon(低碳)lifestyle has an effect         our daily life.More and more attention has been paid to           Energies these days.
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A
in;save
B
in;saving
C
on;save
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on;saving
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Please call me ___ 2137718.
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What’s this         ? It’s a hat.
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 Eating a lot of vegetables __________ good __________ our health.
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Audrey Hepburn was born in Belgium __________ 4th May 1929.
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