Cover of the textbook Wider World 4 - Workbook

The key answer of exercise 1

The key to exercise solutions in chapter 5.5 - Listening and Vocabulary for the textbook Wider World 4 - Workbook with authors Damian Williams from Pearson Education

Question

Complete the puzzle. What is the mystery word?

Answer

  1. sound barrier
  2. gravity
  3. helium
  4. balloon
  5. parachute
  6. engine
  7. force
  8. oxygen

Mystery word → atmosphere

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