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

Roger's tasks:

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