4 a) Read the text and mark the sentences 1-8 T (true) or F (false). 1 Cahokia is a very old site. 2 Not many people lived there. 3 They had very tall pyramids. 4 The city had walls to keep the enemies away. 5 The people there couldn't tell the time. 6 They were hunters. 7 They raised animals for food. 8 Lack of food is a possible reason why people left the city.

1. Cahokia is a very old site. - T
2. Not many people lived there. - F
3. They had very tall pyramids. - T
4. The city had walls to keep the enemies away. - T
5. The people there couldn't tell the time. - нет данных
6. They were hunters. - нет данных
7. They raised animals for food. - нет данных
8. Lack of food is a possible reason why people left the city. - нет данных

Ответ: T, F, T, T