Cover of the textbook Focus 4 (2nd edition) - Student's Book

The key answer of exercise 4

The key to exercise solutions in chapter Unit 8 - BBC for the textbook Focus 4 (2nd edition) - Student's Book with authors Sue Kay, Vaughan Jones and Daniel Brawshaw from Pearson Education

Question

Discuss the questions about the video.

Answer

  1. Because it is the safest place on Earth.
  2. Because it was a difficult project.
  3. Because it needs to be taken great care of.
  4. Because it’s 130 metres above sea level.
  5. Because they built them to last 4,000 years – same time that the seeds will survive.
  6. Because these are the threats to food.
  7. Because it guarantees the survival of food.

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