【題目】The scientists' inventions have made great (貢獻(xiàn)) to our society.

【答案】contributions
【解析】句意：科學(xué)家們的發(fā)明對我們的社會作出了巨大貢獻(xiàn)。此處由形容詞great修飾用名詞復(fù)數(shù)，所以答案是contributions.

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