The presence of Santa Claus means presents! How many words can you spell beginning at pre in this KS3 spelling quiz?
"I think we have to believe in things we don't see. That's really important for all of us, whether it's your religion or Santa Claus, or whatever. That's pretty much what it's about." - James Caan.
In general, formal writing, such as an essay or a report, does not tend to use contractions. Words such as "it's", "don't" and "that's", along with "would've", "should've" and "can't", are signs of informal writing because they give the impression of spoken language.You already know, of course, that apostrophes are used for possession and for omission.