俄罗斯的西伯利地区人口集中分布在南部，其主要的影响因素是（　　）

增加：在缺词处加一个漏字符号（∧），并在此符号下面写出该加的词。

删除：把多余的词用斜线（＼）划掉。

修改：在错的词下划一横线，并在该词下面写出修改后的词。

注意：1).每处错误及其修改均仅限一词；

2).只允许修改10处，多者（从第11处起）不计分。

    "Practice makes perfect" was an old saying.It tells us that it does not any matter if we are slow at doing something.As long as we keep on trying and practice,we'll do a good job at the end.The saying is especial useful in English study.Since a student is poor at speaking,he should catch every chance to open mouth and speak English.His oral English may be excellent one day as a result of his hard works.Not only is the saying useful in English study,but it is helpful in our daily life as well.To some degree,it is no easy way in doing everything since the key to succeed lies in "Practice makes perfect".

       爱使我                   （成长、战胜困难与挫折、走向成功……生活中充满了各种各样的爱。爱来自我们身边的许多人。爱伴随着我们成长……）

       要求：（1）先将题目补充完整，并将题目抄写在正文第一行。（2）内容具体，抒真情实感。（3）认真书写，力求工整、美观。（4）除诗歌外，文体不限，字数不少于600字。