UNIT 1 abandon -- amateur UNIT 2 amaze -- auxiliary UNIT 3 avail -- caress UNIT 4 cash -- conclude UNIT 5 conclusion -- cruise UNIT 6 cue -- distinguish UNIT 7 distort -- excellent UNIT 8 excess -- friction UNIT 9 frown -- identification UNIT 10 identify --intersection UNIT 11 interval -- metaphor UNIT 12 microscopic -- original UNIT 13 originate -- plot UNIT 14 plug --provided UNIT 15 provision -- reject UNIT 16 rejoice -- scan UNIT 17 scandal -- sophisticated UNIT 18 sore -- subsequent UNIT 19 subsidy -- thermometer UNIT 20 thesis -- utter UNIT 21 vacant -- zone