Unit 12
Listening Practice 1
Brian: Hey, Colleen. What are you reading?
Colleen: Hey, Brian. I am reading a book about dinosaurs. It’s really cool.
Brian: I have a question: What happened to all of the dinosaurs? My grandmother said they were killed off by a huge meteor that hit the earth millions of years ago.
Colleen: Uh-huh.
Brian: But my sister said there was an ice age when everything in the world was covered with ice, and all of the dinosaurs froze to death. Who is right?
Colleen: Well, nobody really knows. Scientists know that the dinosaurs died out about 65 million years ago, but they are not exactly sure what happened.
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