V. EXERCISES 1. Complete the following tables. formal informal formal informal Appear seem enquire Ask Ascend climb Complete/finish end Assistance help Communicate/notify tell cease Stop obtain Get commence Start preserve Protect Deploy/employ use reject Turn down decrease Lower Liberate free demonstrate Show Restore/recuperate mend depart Leave require Need desire want reside live formal informal formal informal Comprehension understanding Immature childish deficiency Defect Mistaken/erroneous wrong opportunity Chance inferior Lower/second-rate perspiration Sweat inexpensive Cheap Building/place of residence house Indistinct/faint dim Eyesight sight insane Crazy amiable Likeable Easy-going/level-headed/imperturbable laid back Complete/entire whole responsible Answerable energetic Active Sufficient enough fortunate lucky Vacant/unoccupied empty