Which of the adjectives from B in the vocabulary section would you be most likely to use to describe the following?

1. a scent that remains in the room after its wearer has left
   
2. a feeling of joy that is short-lived
   
3. criticism that seems to go on and on
   
4. a headache that is beginning
   
5. a process that takes a long time
   
6. the never-ending ageing process – you can’t stop its progress
   
7. a grin that lasts only for a moment
   
8. an investigation that takes a long time to complete