Despite their extensive efforts to determine the mode of oil (i)________, scientists still have not (ii)________ the process by which oil is produced.
The passions of love and pride are often found in the same individual, but having little in common, they mutually ______, not to say destroy, each other.
Tuberculosis has long been (i)________ and (ii)________ disease: for thousands of years, it has continued to afflict humankind without regard for sex, class, occupation, or race.
Although Irish literature continued to flourish after the sixteenth century, a (i)______ tradition is (ii)______ in the visual arts: we think about Irish culture in terms of the word, not in terms of pictorial images.
She was criticized by her fellow lawyers not because she was not (i)______, but because she so (ii)______ prepared her cases that she failed to bring the expected number to trial.
Many of her followers remain (i)______ to her, and even those who have rejected her leadership are unconvinced of the (ii)______ of replacing her during the current turmoil.
MacCrory’s conversation was _______: she could never tell a story, chiefly because she always forgot it, and she was never guilty of a witticism, unless by accident.
In spite of the increasing ______ of their opinions, the group knew they had to arrive at a consensus so that the award could be presented.
While scientists dismiss as fanciful the idea of sudden changes in a genetic code (spontaneous mutation), it is possible that nature, like some master musician, _____ on occasion, departing from the expected or predictable.
Far from undermining the impression of permanent decline, the (i)______ statue seemed emblematic of its (ii)______ surroundings.
Before adapting to changes in values, many prefer to (i)______, to (ii)______ the universally agreed-on principles that have been upheld for centuries.
The attempt to breed suitable varieties of jojoba by using hybridization to (i)______ favorable traits was finally abandoned in favor of a simpler and much faster (ii)______: the domestication of flourishing wild strains.
Those who fear the influence of television deliberately ______ its persuasive power, hoping that they might keep knowledge of its potential to effect social change from being widely disseminated.
Surprisingly, given the dearth of rain that fell on the corn crop, the yield of the harvest was (i)____; consequently, the corn reserves of the country have not been (ii)____.
Objectively set standards can serve as a (i)______ for physicians, providing them (ii)______ unjustified malpractice claims.
Although Simpson was ingenious at ______ to appear innovative and spontaneous, beneath the ruse he remained uninspired and rigid in his approach to problem-solving.
Estimating the risks of radiation escaping from a nuclear power plant is ______ question, but one whose answer then becomes part of a value-laden, emotionally charged policy debate about whether to construct such a plant.
Throughout the artist’s work there runs a thread of psychic darkness strong enough to unnerve the most added sensibility: even her drawings from the comparatively (i)________ months of her visit to Rome (ii)________ violence secrecy, and despair.
Although a change in management may appear to (i)_____ a shift in a company’s fortunes, more often than not its impact is (ii)______.
In spite of the fact that it is convenient to divide the life span of animals into separate stages such as prenatal, adolescent, and senescent, these periods are not really ______.