1 A person who knows physics well is a physicist.
2 Her uncle works as a ticket collector.
3 In my free time I go dancing.
4 Be patient with him, he is just a beginner.
5 Walking in the fresh air is good for your health.
6 They chose a new leader of the party.
7 Do you like cooking? – Not very much.
8 Many talented writers work for this paper.
9 Driving in the fog may be dangerous.
10 What is happiness?