Question

СКАЖИТЕ ПОЖАЛУЙСТА СРОЧНО НУЖНА
1. Before the invention of electricity, people used to ★★★.
2. Before the invention of the mobile phone, people used to ★★★.
3. Before the invention of email, people used to ★★★.
4. Before the invention of books, people used to ★★★.​

Answer 1

Before the invention of email, people used to messages in the form of symbols and drawings.

Before the invention of books, people used to codices