Match each sentence to its level of formality:
1. Informal: It’s a lot of fun to watch the Olympics.
2. Very informal: Kicking back and watching the Olympics is awesome.
3. Formal: Watching the Olympic Games is a highly satisfying source of entertainment.
They way to recognize the level of formality of a sentence is by observing the lexic selection (i.e. the words used) and the syntactic complexity.