Word formation- 12 (Basic)

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It was one of his most important ______ . (ACHIEVE)

(a)  

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The teacher had great (a)   in his students. ( CONFIDENT )

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Burning coal is an (a)   way to heat the house. Gas is much cheaper. (ECONOMY)

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(a)   is often more useful than definition for giving meanings of words. (ILLUSTRATE)

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People hate him because of his (a)   . (HONEST)

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The firm is working on a new product in (a)   with several overseas partners. (COMBINE)

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The (a)   of the country requires many high-tech engineers. (MODERN)

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Everyone must obey the rules of (a)   . (SOCIAL)

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Coke is a ______ of cola flavor, water carbon dioxide and sugar. (MIX)

(a)  

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(a)   , I agree with you. (BASIC)