Fill in the gaps. There is one extra word you don't need.

1. Sam is very ... and always asks lots of questions.
2. Sally is very ... about her work.
3. I can get to the university library very quickly because I live on ... this year.
4. He jumped out of the burning aeroplane and opened his ... quickly.
5. It’s a doctor’s ... to do his best to save a patient.
6. Students often do odd jobs to ... extra money.