10. I don’t know 　　　　　book this is. (who)

9. She noticed a wallet 　　　　　on the ground. (lie)

8. You must drive 　　　　　when it's snowing heavily. (care)

7. We were very 　　　　　to him for his help (thank).

6. They carried the wounded soldier to 　　　　. (safe)

5. He is 　　　　　enough to believe that man. (fool)

4. Today it is a 　　　　　day. (sun)

3. He is 　　　　in English. (interest)

2. We finished the 　　　　　lesson last week. (nine)

1. How much are these 　　　　？(tomato)