4 Complete the examples in the Useful language boxUseful languagePrepositions of time and placeUse the prepositionson with dates August 9thin with months and years: December, 2014in with towns/cities and countries: ... London, Nigeriaat with sports events and ages: ... the WorldChampionships, ... the age of 12​

1)

1. Design and construction of roads, bridges, buildings - civil engineering

2. Science of very low temperatures - cryogenics

3. Science of communication and control in machines and brain - cybernetics

4. Study of work environments and conditions - ergonomics

5. Scientific study of the chemical nature and natural forces influencing stars - astrophysics

6. Study of the influence of a country’s position on its politics - geopolitics

7. Scientific study of space travel - astronautics

8. Scientific study of human races and their characteristics - ethnology

2)

1. machine

2. appliances

3. machinery

4. device

5. gadgets

6. motor