Please write out the passage and input all the missing apostrophes.
These can be done in two ways - possession and omission (contractions).
Possession - That is the dog's bone. (The bone that belongs to the dog).
Omission - I didn't like going on the rollercoaster, it was too scary! (did not has become didn't - the apostrophe goes where the letter has been omitted or taken out).
Plurals do not need apostrophes! (I looked at the clouds in the sky.)