Final answer:
The provided sentences contain various examples of common nouns, such as 'hill,' 'land,' 'labor,' 'wealth,' 'library,' 'game,' and 'brother.' Issues with apostrophes in the sentences include the needed correction of 'Farmer Johns' to 'Farmer John's,' 'ones' to 'one's,' and clarification on the possessive form of 'kid's' depending on the intended meaning.
Step-by-step explanation:
The student's question involves identifying common nouns in provided sentences. A common noun is a general name for a person, place, thing, or idea and is not capitalized unless it's the first word in a sentence. When providing examples or correcting the use of common nouns and apostrophes in sentences, it's essential to look at the context of the noun within the sentence.
Let's examine each sentence individually:
- Jack's and Jill's hill is nothing more than a mound of dirt on the southwest corner of Farmer John's land. The words 'hill' and 'land' are common nouns in this sentence. Also, the apostrophe in 'Farmer Johns' should be 'Farmer John's' to signify possession.
- One's labor is proportional to one's wealth. In this sentence, 'labor' and 'wealth' are common nouns, and the incorrect possessive pronoun 'ones'' should be corrected to 'one's' to denote possession correctly.
- George shouldn't say that he'll be in the library when he obviously won't. This sentence is correct as written; 'library' is the common noun.
- I'll be back. Correct as written, with 'back' not being a noun.
- Who'll referee those kid's soccer game if not for your brother. 'Game' and 'brother' are common nouns here, and 'kid's' should be 'kids' to indicate the plural form, unless it is meant to show possession by one kid, in which case 'kids'' denotes possession by multiple kids.