Dear Mrs. Chan,

　　Having seen your advertisement for a part-time lab assistant to help with development of computer in China Daily, I beg to offer myself for the position.

　　I graduated from the Physics Department of Beijing University with an electronics degree and I have been working in the electronics lab in Honda Electronics Company in Guangdong for five years. I’m good at physics and both my spoken English and written English are very good. Besides, I’m in good health because I like sports very much. I work in my company from 8:00 am to 12:00 am. From Monday to Friday, so I’m quite able to work in your company from 3:30 pm to 5:00pm. And I’m quite pleased with the salary your company offers.

　　Yours sincerely

　　Li Ping