form, …a theory / …an opinion, analyze, …samples / …the results, conduct, …an operation / …a survey, release, …chemicals into the atmosphere / …an animal, submit, …an essay / …it before the deadline, reward, …their effort / …her for her work, track, …the movement of birds / …your progress.

Perspectives 3. Unit 5A. Vocabulary. p. 57. Exercise 4

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