根据句意及首字母或者汉语提示，补全单词。

1. The old man is a great a            of children novels. Children like reading his books.

2. Look! This new book b_    ___ to your sister.  There is her name on it.

3. All of us want to have a p            in the forest this Sunday.

4. Some leaves start             (掉下) on the ground when autumn comes every year.

5. Our teachers ___ _    (或许)go to movies by bus.