Look at the vocabulary in lesson 2.3 in the Students' Book. Choose a word or phrase from each pair in the box to complete the sentences.

1 Did you know that a linquist studies how languages work? You must be able to swim if you want to be marine biologist of the time.

2 Haley has psychology that she meets. He helps her to talk about her feelings.

3 There's an interesting course on conservation in the local youth centre. Maybe I can do it and then help people learn more about saving the planet.

4 Rafaele wants to be an archaeologist because he's always liked looking for old things buried in the ground.

5 I don't think I'd like geology - you often examine rocks and stones and get your clothes and hands dirty all the time.