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A person having significant experience in an occupation

Believing that people are generally selfish and dishonest

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

A person who knows everything

She is not showing enough care and attention to finish her tasks.

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

  A herd or flock of animals being driven in a body

a person who loves their country and, if necessary, will fight for it.