Write a letter to a friend to ask for a loan.
You should say:
Letters to friends can include contractions and more informal language. However, formal letters should be much more formal. You should use the correct sign posting and introduction for your letter. You should also avoid contractions for more formal letters.
I am writing about my book I lent you last week and I was wondering if you have finished with it yet.
I know you needed it for your class last week, but I really need it this week, as I have my assignments due very soon.
If you have finished with it - please text me or call me, so I can come over to collect it.
I really want to get these assignments out of the way and that was my only copy of the book.
If you want we can study together for next week's exam. I hope you found the book useful by the way!