Ответ на вопрос: 1. Распределите слова по двум группам: this (единственное число) и these (множественное число): benches, classes, boatmen, geese, firemen, brushes, key, matches, bushes, piano, cameraman, policeman, gentlemen, chairman, monkey, sandwiches, policemen, showman, seaman, sportsmen, torches, goose, cars, watches, tray, churches, tree, postman, wishes, weatherman.