Ladies and gentlemen,

　　How time flies! Two years have passed since Mrs Brown came to our school to teach English in September,1998.Now she's completed her work successfully and will leave for home tomorrow.Mrs Brown is very strict with us.She's very patient and never tired of helping us in our studies.Her teaching is so lively and interesting that we can easily remember what she teaches us.We all like to attend her lectures.

　　Now I will,on behalf of all the students,express our gratitude to Mrs Brown for her remarkable work.We wish her a pleasant journey and good health.