13. This is ______ book you gave me last week.

12. We were having______ lunch when they came in.

11. Tomorrow Mr. Smith will leave Paris, ______capital of______ France, for Washington by______ air.

10. We can't live without ______ water or ______ air.

9. John is______ cleverest boy in his class.

8. In ______ winter it is cold in ______ Beijing and warm in ________Shanghai.

7. What ______ beautiful day! And what ______ fine weather!

6. Don't worry. We still have ______ little time left.

5. Last night I went to______ bed very late.

4. Some people don't like to talk at ______ table.