What are some examples for semi-formal letters?

Plateau state polytechnic ba rkin ladi

jos,

Nigeria

pmb 2023

12th august 2012

dear sir,

invitation

i here invite you to our s.u.g election that will take place on the 30th of this month to be among the electorat commitee. I wish you will consider my invitation.

Yours faithfull

sign

regina salau

mass comm president.