The Extinction of the Dinosaurs (subordinating conjunctions)

Roger Walter

Gramática — Nivel Principiante
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Elige la mejor opción para completar correctamente las siguientes frases

  1. According to many scientists, the dinosaurs became extinct   an asteroid impacted the Earth
  2. The dinosaurs died   the impact caused catastrophic effects on the environment
  3. The impact ejected dust into the atmosphere   it blocked radiation from the sun
  4.   some turtles and crocodiles survived, all vertebrates that weighed more than 25 kilograms died
  5. The asteroid theory became widely accepted   a 180-km crater was discovered in the Gulf of Mexico in the early 1990s
  6. Some scientists don’t know   the asteroid theory is true or not
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Debate

Practica tus habilidades de escritura debatiendo las siguientes cuestiones

  1. What do you know about how dinosaurs lived?
  2. Which is your favorite dinosaur? Why?
    Roger Walter

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