【C8】A．sufficientB．efficientC．effectiveD．sufficiency

【C20】A．instructiveB．efficientC．beneficialD．profitable

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【C8】A．effectiveB．efficientC．affectionateD．moved

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The money I have saved is ____ for buying a car.A.proficientB.efficientC.potentialD.suff

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He is an ____ manager.A.proficientB.efficientC.potentialD.sufficient

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【C3】A．proficientB．efficientC．sufficientD．elaborate

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She is ______ at every aspect of the job; all she lacks is imagination.A．sufficientB．adequ

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What function does the first sentence in the second paragraph serve？A．It stresses the effe

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