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a) hardly had he read, when, reading b) hardly he read, than, to read c) hardly he had read, when, reading d) hardly he read, when, read 20. You___till I came back. I___late. a) may wait, have been working b) might have waited, had been working c) must be waiting, had worked d) should wait, have worked
Keys Unitl The Noun Exercise 1 A stories, plays, glasses, flags, photos, names, matches, knives, bushes, chiefs, pages, radios, roofs, prizes, sets, keys, factories, wolves, pianos, classes, cups, cities В children, geese, men, feet,-mice, women, sheep, people, deer, teeth, oxen С criteria, data, formulae/formulas, crises, stimuli, indices/indexes, phenomena, media, oases, nuclei, memoranda, bases, radii, analyses, symposia, hypotheses D fellow-workers, merry-go-rounds, men-of-war, passers-by, sisters-in-law, forget-me-nots, room-mates, lilies-of-the-valley, ticket-holders, commanders-in-chief, governor-generals Exercise 2 Countable nouns: leaf, computer, list, job, language, country, permit, beach, window, holiday, scene, pigeon, mountain, accident, laugh 313
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