Задание

Прочитайте приведённый ниже текст. Образуйте от слов, напечатанных заглавными буквами, однокоренные слова так, чтобы они грамматически и лексически соответствовали содержанию текста. Заполните пропуски полученными словами. Каждый пропуск соответствует отдельному заданию из группы 26–31.

The history of paper

Writing has been the center of civilization for centuries. Most of our important records are on paper. In fact, putting thoughts down in written form wasn't always easy or PRACTICE. Early people discovered that they could make simple DRAW on the walls of caves. FORTUNATE, they couldn’t transport them. Around 4000 B.C., people started scratching messages into heavy clay tablets. Although this form of written COMMUNICATE was now portable, it still was very heavy. For centuries, people tried to discover better surfaces on which to record their thoughts. Almost everything IMAGINE was tried. Wood, stone, ceramics, cloth, bark, metal, silk, bamboo, and tree leaves were all used as a writing surface at one time or another. No major changes in writing materials were to come for about 3,000 years. A Chinese man named Cai Lun discovered a way to make paper. The importance of this INVENT is hard to overestimate.