Решение:
- He wants milk? (want)
- We pick up many mushrooms? (pick up)
- Ann is doing her homework? (start)
- Your friends invited their classmates last Sunday? (invite)
- Polly walks in the forest? (walk)
- Your Granny cooks apple pie? (cook)
Ответ: 1. wants; 2. pick up; 3. is doing; 4. invited; 5. walks; 6. cooks.