Choose the correct options

1. I can't find Dora anywhere. Where [has she been going|has she gone]?
2. I have been doing my history project for a week. I [have finally completed|have finally been completing] it.
3. How long [have you waited|have you been waiting] for us?
4. The researchers
   [have finished|have been finishing] analysing the data recently. They [have analyzed|have been analyzing] it for two months.
5. How many tasks in the list
   [have you completed|have you been completing] yet?
6. We [have walked|have been walking] along the hiking trail for many hours. We [have covered|have been covering] around 12 km.
7. Finally, I [have been finding|have found]
   fashionable high-quality trainers.