题目内容：

根据句意或单词的首字母填写所给单词的正确形式。

1.Sam found his__________ outside his front door. (钱夹)

2.After he was arrested, the man_________(承认) hiding in the box before the plane left London.

3.They decided to a ____ an orphan from the earthquake-hit area.

4.What you eat every day can be_____________(转换) into energy.

5.You need to be more __________(灵活的) and imaginative in your approach.