题目内容：

根据句中所给汉语，完成下列句子。（每空一词，每空0.5分，共10分）

1.随着时间的推移，我们对周围的事物有了更好的了解。

                            , we had a better understanding of things around us .

2.根据我们的记录，这种鸟类已经灭绝了。

                 our records , this kind of birds has                   .

3.我突然感觉我们俩有许多共同之处。

I suddenly felt that we                                        .

4.男孩子们两年前彼此协定交换故事书。

The boys                                             one another to exchange storybooks two years ago .

5.在他朋友的帮助下，他成功戒烟了。

                                       , he succeeded in giving up smoking .