[Complete the text from the audio!]
Millions of years ago, (a) walked the Earth. There were many different kinds of dinosaurs. Some were as (b) as a four-story building. Others were as small as a (c) . Some dinosaurs ate plants. Some dinosaurs ate other dinosaurs. But there were some ways in which all dinosaurs were alike. They all lived millions of years ago. They all lived on the land. They all (d) . They all had four legs and a tail. No human has ever seen a living dinosaur. That is because the last dinosaurs died millions of years before humans (e) .