用所给词的正确形式填空。

1. September is the ______(nine) month of the year.

2. The boy from Class Two was the first past the ______(finish) line.

3. Last year, we planted ______(hundred) of trees in our village.

4. His father taught ______(he) French when he was seven years old.

5. The girl is writing a diary ______(careful) now.

6. I ______(work) all night writing an important report for the next meeting.

7. Everyone makes _______ (mistake) in his life.

8. Thank you for ______ us so much (help).

9. This music is so ______ (difficulty) to play.

10. To ______ (he) surprise, his dog was saved in the end.