Образуйте однокоренные слова так чтобы они соответствовали содержанию текста. four hundred years ago books were so that only richest people could afford buying them. expense the man who had thirty books was to have quite a library. as books were dear, rules were made for their use. real they were not to be touched with hands, not to be put on the table at meal time. none was to eat fruit or cheese while reading them. dirt books were dear in because every copy had to precious be written out by hand, and this was a process. monks spent their hours of leisure in coping. length a monastery that had a was always being asked for copies. fame the vast oceans of the world are dark, depth and mystery placed where eyesight counts for little as soon as you venture far beneath the surface. for humans, who live in a world dominated by vision stimuli, to exist in such conditions would bе possible. but for whales and dolphins that live in the ocean or muddy rivers the dark is unimportant. what is crucial to them is sound. sound is an efficient way to transmit and sense inform, especially as it travels times faster than through air.