Read the text and conjugate the verbs into the appropriate form of the past tense.
Prehistory is the longest period in human history. It extends from the appearance of the first human beings to the invention of writing (between 2 million years BC and 3.500 years BC).
Prehistory is divided into three periods:
The Paleolithic Age or Old Stone Age ___________ (to begin) with the appearance of our first ancestors, about 2 million years ago.
It ________ (to be) the longest phase of human history.
Paleolithic people _________ (to be) generally nomadic hunters and gatherers.
They __________ (to live) in caves, ___________ (to use) fire, _________________ (to make) stone tools and ___________ (to paint) in the cave.
The Neolithic o New Stone Age __________ (to begin) when the agriculture __________ (to discover, past passive) between 9000 and 7000 BC.
In this period, groups of human beings ___________ (to start) to live in settled villages.
They ___________ (to practice) agriculture, ____________ (to domesticate) animals and _____________ (to invent) pottery and textiles.
The Metal Age ___________ (to begin) when human beings ___________ (to learn) to use metals to make objects (5.000 years BC), mainly copper, bronze and iron.
They ___________ (to build) monuments with big blocks of stone, called menhirs, dolmens and stone circles.