13. i______ (v.) to act the part of; to attempt to deceive sb. by pretending that you
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14. s______ (n.) a reduction in the rate, amount or standard of sth
15. i______ (adj.) making sb feel fresher, healthier and more energetic
16. g______ adj bright and shiny from being cleaned
17. n______ (adj.) : showing too much interest in and admiration for your own physical appearance and/or your own abilities