Dear Sir,
My name is Alan Green. My first name is Alan. I'm 20 years old. I want to help you 1 your school trip to Beijing. I like kids. I can be 2 with them. I like 3 and I can play volleyball and basketball, 4 I cannot play football. I can swim. I also like 5 and I can sing and dance well. I like art and I can 6 well. Oh, I can play the 7 very well. It's my favourite. If (如果) I can be in your Beijing school trip, please 8 me. My phone number is 863-2731. I'm happy to join you.
Yours,
Alan