帮忙修改一下英文实习证明吧!单位有个外国实习生要回国,给她开了个实习证明,又不知道对不对,

帮忙修改一下英文实习证明吧!单位有个外国实习生要回国,给她开了个实习证明,又不知道对不对,
怕弄错了让外国人笑话,请大家帮帮忙啦!呵呵!
Practice Certificate
It is certified that Daria Davydora Dasheko finished her one-month practice.During the time of her internship, she worked hard and had a good performance.She made own contribution toimprove and upgrade the Level of knowledge of migrant workers. On dealing with her work, she was strict with herself, concerned about all the others and doing well in all her work.
Now the practice is over.
This is our Practice Certificate
Signature：
（ stamp)
February 18, 2011

我帮你改改格式,你就往里填内容就好了
Intership Certificate
TO WHOM IT MAY CONERN
第一段：This is to certify Daria Davydora Dasheko has done her internship in 她实习的领域 at 你们单位名称 from 开始 to 结束日期.
第二段 ：介绍实习内容,这里得靠你自己填,只有你最了解.
第三段：During the internship she demonstrated good skills with a self-motivated attitude to learn new things.Her performance exceeded expectations and was able to complete the work/task/project on time.
第四段：We wish him all the best for her future endeavors.
第五段：单位名称
第六段：证明人,签字,日期