adj. completely necessary; extremely important in a particular situation or for a particular activity; connected with the most important aspect or basic nature of sb./sth..
A. essential
B. fertile
C. economic
D. elementary
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adj. very great in degree; (of people, political organizations, opinions, etc.)far from what most people consider to be normal, reasonable or acceptable
A. fertile
B. external
C. extreme
D. flexible
n. a collection of things, for example works of art, that are shown to the public; the act of showing sth., for example works of art, to the public
A. exhibition
B. explosion
C. excursion
D. equation
v. to order sb. not to do sth.; to order that sth. must not be done
A. formula
B. empire
C. flavour
D. forbid
adj. too much; more than is reasonable
A. excessive
B. economical
C. financial
D. essential