Ответ на Unit 3, Step 3, Номер 8 из ГДЗ по Английскому языку 9 класс: Афанасьева (Учебник Rainbow)

8 Speak about one of these periods: 1) the Old Stone Age; 2) the New Stone Age; 3) the Bronze Age; 4) the Iron Age. Mention these:
•when the period began;
•the most important inventions of the period;
•usual/typical activities of the people who lived in that period.