Select the option that can be used as a one-word substitute for the given group of words.

Fall back or sink again (into a worse state after an improvement) 

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Many a person are unable of distinguish right from wrong.

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 Everyone in the fraternity has his own 'set in' prejudices.

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 She bought the fine cloth in the store.

Select the most appropriate option that can substitute the underlined segment in the given sentence. If there is no need to substitute it, select ‘No substitution required’.

The first meeting of the Standing Committee will be hold next week.

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Chandra's good gestures "will highly appreciated".

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Apple's new "operate" system for phones and tablets, iOS 11, is getting some much-sought-after updates.

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 According to the best available information, the facts 'are' true.