ARTICULATE
(a) Unable to understand
(b) Unable to express oneself
(c) Unable to agree
(d) Unable to live

TRIVIAL
(a) Temporary
(b) Delicate
(c) Important
(d) Arbitrary

UNJUST
(a) Serious
(b) Self-centred
(c) Fair-minded
(d) Considerable

Poisonous gases emitted from factories contaminate the air we breathe in.
(a) sanctify
(b) invigorate
(c) taint
(d) purify

Reckless driving causes accidents.
(a) careful
(b) slow
(c) good
(d) correct

He often went to the theatre.
(a) seldom
(b) rarely
(c) sometimes
(d) occasionally

He is frugal in his spending.
(a) economical
(b) extravagant
(c) miserly
(d) greedy

The students expected an eminent scientist to inaugurate the programme.
(a) illustrious
(b) notorious
(c) intelligent
(d) unknown

Some of their customs are barbarous.
(a) civilized
(b) modern
(c) polite
(d) praiseworthy

They are going to embark upon a mountaineering expedition.
(a) launch
(b) analyse
(c) break off
(d) conclude

There has been a gradual falling off in the quality of articles manufactured locally.
(a) shrinkage
(b) erosion
(c) improvement
(d) descent