Complete the following reference request letter by filling in the blanks with appropriate prepositions. Dear Mrs. White: We have received an application 1) Carl2) this post.Details of our company and a copy of the job description are enclosed.Carl has told us that we may apply3) you 4) a reference. We should be grateful if you can tell us how long Carl has been employed 5) Top Factory,and what posts he has held. We should like to have some information 6) his personal abilities.This post requires leadership qualities,ability to communicate and work 7) a team,and a good command 8) English. Do you consider him a suitable person to hold a key management position in an expanding multinational corporation? Thank you for your help. Your sincerely, Linda Chen