I wrote a letter to my friend. I put the letter in the mailbox.  Оn the envelope I stuck a stamp.  I bought a book of 6 first class stamps. I wanted to send something fragile, so I put it in a padded envelope. I sent a present to my friend. It was big so I put it in a box. I need a passport, so I  will fill in an application form. I needed information about the bank's post office so I picked up a leaflet.