1)write an address (at/on/in)the envelope! 2)i like to write letters(to/at/with)my friends 3)she gets beautiful postcards(to/at/on)her birthday 4)little roo always helps his mother.he puts stamps(on/at/to)enevelopes 5)ann,put my letter(to/in/into)this envelope,please pl hel

1)write an address on the envelope!2)I like to write letters to my friends
3)she gets beautiful postcards on her birthday
4)little Roo always helps his mother.He puts stamps on enevelopes
5)Ann,put my letter into this envelope,please