Choose the correct possessive form for each phrase. Add ’s to form the possessive of a singular noun. Add only an apostrophe to form the possessive of a plural noun that ends in s. If a plural noun does not end in s, add 's to form the possessive, just as you would to a singular noun that does not end in s. 1. the homework for this week (1 point) the homework for this week this week’s homework homework’s week homeworks weeks