It Welcome to this exercise. Your task is to provide the correct answer for each question. Read all of these instructions.
Nouns expressing possession always end in -S and always contain an apostrophe in their spelling.
This base is going to be either singular or plural. All the confusion about 'S vs. S' boils down to not distinguishing between plural forms and possessive forms. Add an apostrophe after it. Add an -S after the apostrophe if your ear calls for one. 5. We all admired Santa Claus's teeth.