Упр. 1 Поставьте предложенные существительные в форму множественного числа.
1Computer, 2glove, 3boat, 4tooth, 5umbrella, 6subway, 7flower, 8monkey, 9ox,10 butterfly, 11tram, 12daddy, 13wife, 14cherry, 15news,16 woman, 17desk, 18roof, 19trousers, 20mouse,21 fork, 22hero, 23chief, 24fish, 25scissors,26 advice, 27child, 28scarf, 29piano, 30fisherman, 31baby,32 plant,33 lemon, 34deer, 35peach, 36banana, 37brush, 38secretary, 39goose, 40crowd, 41airport, 42theatre,43 pocket-knife, 44tornado, 45shop,46 tragedy.