Cover of the textbook English Grammar in Use

The key answer of exercise 79.2

The key to exercise solutions in chapter Unit 79 - Singular and plural for the textbook English Grammar in Use with authors Raymond Murphy from Cambridge University Press


In each example the words on the left are connected with an activity (for example, a sport or an academic subject). Write the name of the activity. The beginning of the word is given.


  1. mathematics
  2. politics
  3. economics
  4. athletics 
  5. physics
  6. gymnastics
  7. electronics