12.Charles and Camilla face undoubted challenges, keeping the monarchy relevant to Modern British Society, facing up to its role in Britain's often brutal Colonial past.
15.There were undoubted low points, but the mass outpourings of affection on her silver, golden and diamond jubilees testified to the special place she held for millions.
16.Research has now established it as the undoubted trigger, once certain concentrations had been reached, for the development of the electrostatic power in women.
17.Why is it that Europeans, despite their likely genetic disadvantage and (in modern times) their undoubted developmental disadvantage, ended up with much more of the cargo?
18.And now, when Wolf, though with great caution, showed undoubted partiality, Selenin became excited and expressed his opinion with more nervousness than an ordinary case would justify.
19.Oppenheimer was a man of dichotomies His brilliance was undoubted; he mastered quantum mechanics, leading the secret Manhattan Project and orchestrating the fusion of human intelligence and elemental power.
20.Looking upon the reduction of the tariff as a complete vindication of her policy and an undoubted victory, South Carolina rescinded her ordinance and enacted another nullifying the force bill.