1. emulation—B: imitation; as, Mrs. Zachariah knew her young students would learn their manners by emulation, so she was always polite to them. 2. nefarious—A: wicked and immoral; as, The nefarious art thief replaced the Mona Lisa with a fake. 3. auriferous—C: containing gold; as, Many electronic connectors are auriferous because gold is an efficient conductor.
4. inoculate—C: inject with a weak form of a disease for protection; as, Volunteer doctors came to the remote village to inoculate the children.
5. exultation—A: triumphant rejoicing; as, Rihanna whooped with exultation when she realized she’d won the race.
6. oleaginous—A: exaggeratedly complimentary; as, Martha’s oleaginous praise of the customer’s taste did not produce a sale.
7. delusional—B: believed despite evidence to the contrary; as, John’s friends urged him to give up his delusional notion that Doreen was attracted to him after she rejected him for the third time.
8. eunoia—A: goodwill; as, In a flash of eunoia, Louis-Fernand decided to drop his grudge against the next-door neighbour.
9. gelatinous—C: viscous like jelly; as, Shuji’s first attempt at making gravy produced a gelatinous disaster. 10. fluoridate—C: add fluorides; as, Many Canadian cities fluoridate their water to help fight cavities.
11. ambidextrous—A: able to use both hands equally well; as, The ambidextrous fencer deftly switched hands and scored the winning point. 12. adventitious—C: by chance rather than by design; as, Meeting his favourite author at the bookstore was adventitious for Barat, since he’d had no idea she’d scheduled a signing there.
13. renunciation—B: act of refusing or giving up; as, Anita declared her renunciation of potato chips to her friends in hopes they would hold her to it.
14. mustachioed—B: with a moustache; as, Hercule Poirot is the famous mustachioed sleuth created by Agatha Christie.
15. facetiously—A: flippantly; as, Tranh facetiously described his messy room as a form of self-expression, but his mother was not amused.