用适当的冠词填空。（不需要冠词的填“／”）

1. There is _____"u" and _____“s” in _____ word“us”．

2. This is _____ useful book. I've read it for _____ hour.

3. _____ sun rises in _____ east.

4. _____ Changjiang River is _____ longest river in _____ China.

5. Washington is _____ capital of _____ USA.

6. _____ Turners are living at the end of _____ Turner Street.

7. He joined the army in _____ spring of _____ 1998.

8. After I had _____ quick breakfast , I hurried to school.