These sentences use some other phrasal verbs. Can you work out what the verbs mean from the context? Match the phrasal verbs in the sentences with the definitions in the box.

1. Most of the students say they would like to do away with school uniform.
   
2. The new arrangements won’t kick in till next month.
   
3. Stop messing around – go and tidy your room.
   
4. Problems always seem to crop up at the most inconvenient times.
   
5. These complications will set the building work back by several weeks.
   
6. However hard he tries, his teacher always seems to run him down.
   
7. I heard the bomb go off at midday.
   
8. It’s foolish to hold something so important back from your partner.