Prepositions – at, in, on – Test

Task Nr. 3023

Which of the following prepositions at, in or on can be put before the following words or phrases?

  1. foot
  2. groups of five
  3. public
  4. 1984
  5. the wall
  6. the River Thames
  7. the world
  8. the country
  9. drugs
  10. the right