our
1.下面三句里的our都不对，该改作his。假使us所指的都是女子，该改作her，假使us所指的男女都有，该改作his or her：
- Each of us ought to do our best.
- Every one of us ought to do our best.
- Which of us ought not to do our best?
下面三句里的our也不对，该改作their：
- Some of us did our best.
- Many of us did our best.
- Five of us did our best.
2.our hero, our little artist, our young friend等表达方式里的our表示“说话者（或作文者）”和“听者（或读者）”对于所提及的人的关心或情感。
