If the sea ____ to rise 50 feet India would become an island.

A （n) _____ is a chemical or electro－chemical attack on the metal surface which may be further increased if the sea－water is polluted.

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If demand is rising but the firm __________ from communication failure, then stocks wi

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According to the passage, the island got its first soil from ______.A．sea wavesB．the sand

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______ is used to prevent the entry of sea water to the machinery space.A.A special sealin

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In addition to the rising birthrate and immigration, the ______ death rate contributed to

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The tuition fees are ______ to students coming from low-income families. [2007]A．approacha

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Food will ______ if the temperature in your freezer rises above 8℃.A．decayB．rotC．spoilD．co

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