Read tge passages using the verbs in the correct tense forms and Voice
1 in the ancient world there were thousands of foot messengers who (to form) an anciet communication network.one of the most famous messengers in history was a Greek soldier. He ( to run) to Athens to bring news of the Greek victory over tge Persian . When he ( to get ) to Athens and ( to give ) the news , he ( to fall) dead of the axhaustion. He had covered a distance of 26miles. In honour of that soldier, sportsmen nowaday run the same distance- a marathon
2.when the telephone ( to invent) in 1876, everybody (to think) that it ( to be) a real miracle. The telephone and the telegraph were the fastest means of communication the people could imagine. In the 19 century people used to say " We ( to invent) everything we could " . As we know , today it is just the beginning.
3. In the Middle Ages life was hard and dangerous. It was very important to have good neighbours and get news quickly . So people ( to use ) the high towers of their castles to send and receive messages about the enemies. American Indians ( not to build) high towers but ( to use ) smoke singnals to send important information.