b) What does/doesn't Roger have to do? Add question tags.

Roger's Tasks:

1. order more trees, doesn't he?
2. call the recycling centre, doesn't he?
3. tidy the eco-library, doesn't he?
4. clean out the clubhouse, doesn't he?
5. buy more wood and nails next week, doesn't he?
6. give out membership cards, doesn't he?