Ответ:

5. Listen again and circle the correct options.

  1. The speaker describes the inventions as happy accidents / experiments.
  2. The 'cat's eyes' help drivers to see other drivers' lights / the middle of the road.
  3. The inventor saw his car lights reflecting in part of a glass object / an animal.
  4. Sir Alexander Fleming was studying bacteria / mould in a London hospital.
  5. A person left the Petri dish open when Fleming was in hospital / on holiday.
  6. Some mould was growing / killing the bacteria in the Petri dish.