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.
the collars belonging to the cats
O A. the cat's collars
OB. the collar's cats
O
Cthe cats' collars
OD the cats's collars

just took the test;

argument: "it's time to wage a war against britain to secure american freedom."

claims: "america has tried every peaceful method available for seperating from england" & "the americans' petitions to the king have been turned away by him."

the pronoun reference replaces a noun, but you have to make sure there's no room for confusion.

in the first sentence "her" could be referring to shely or to the sister. the answer there is "shelly called her sister and told her about the new baby."

in the second sentence "it" could be referring to the roof or the floor. the answer there is "since the roof leaks on the family room floor, we need to repair the roof."

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