Revision

3. to not succeed in what you are trying to achieve or are expected to do
5. a long time
7. when everyone takes part
10. a student who is studying for their first degree at a college or university
11. jobs at home

1. to get something that is useful, that gives you an advantage, or that is in some way positive, especially over a period of time:The mayor has gained a lot of support from the teacher's union.
2. a time when all the people involved in a play, dance, etc. practise in order to prepare for a performance
4. a piece of work given to someone, typically as part of their studies or job
6. the way that two or more people act or behave
8. extremly useful
9. a teacher at a British college or university who teaches one student or a small group