1.
2. How long have you been living in this cottage.
3. Lately they have been using our forks and spoons.
4. Rachel and Richard have been teaching chinese for eight years.
5. Since yesterday our cats have been eating cat food
6. My grandma has not finished her reading
7. Their cousins have bought five interesting books.
8. His daughters have drunk two mugs of milk.
9. My aunt has not already arrived at the airport
10.We have run out of sugar
