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word formation B2
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alternate (to change) -> adjective
alternative
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harmful -> opposite
harmless
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with good intentions -> adjective
well-intentioned
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widely (adverb) -> verb
widen
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cautious ->noun
caution
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flixible -> noun
flexibility
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frozen -> verb
freeze
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strong ->noun
strength
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availability -> adjective
available
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able -> noun
ability
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