XI. Fill in the missing words: 1. There is no ... in my flat. 2. There are many fruit trees in our ... . 3. There is a green ... in front of his Institute. 4. Where is you father? — He is working in the ... . 5. My sister’s room is very ... . 6. Is this your ... book? 7. The furniture in my brother’s room is quite ... . 8. The floor is covered with a beautiful thick ... . 9. A ... serves to carry rubbish down.