8. Put the verba in brackets into the present perfect continuous
1. She has been working (work) as a shop assistant since 2003
2. Your hands are dirty. What.........(you/do) ?
3. How long .....(they/live) here?
4. It ......(rain) for three hours now.
5. The students....(organise) the event for over a week now.
6. Stella.....(learn) English since last winter.