英语证明信写一封证明信,证明王浩在你处任会计5年,任职期间工作努力,尽职尽责,值得依赖.

Certificate of Employment
　　This is to certify Mr.Wang Hao （ID/passport No.12345678900 身份证/护照号） has been working in XXXX (单位名) as an accoutant from 2007 till now.In these five years of accounting work,Mr.Wang has proved himself areliable staff for he has always been hard-working and responsible.

This is to certify Mr. Wang Hao who was the accountant in your company for 5 years and always worked hard and conscientious, he is a reliable staff.
不知道他是过去曾任会计5年还是到现在为止任了5年。时态用词是不一样的。

To whom it may concern,
This is to certify that Mr. Wang Hao has been working as an accountant with us for the past 5 years. Mr. Wang has been hard-working, loyal, responsible and trust-worthy.