Question

Add punctuation change if necessary: Maureen's three sisters, Molly, Shannon, and Patricia are all spending the summer at their grandmother's beach house.

Answer 1

The question required punctuation corrections in several sentences, which include the accurate placement of apostrophes for possessives, contractions, and clarity of meaning.

Step-by-step explanation:

The student's question pertains to proper punctuation usage in several sentences. Adding or correcting punctuation is critical to clarifying the meaning and improving the readability of a sentence. Here are revised versions of the sentences with the necessary punctuation changes:

1. Jack's and Jill's hill is nothing more than a mound of dirt on the southwest corner of Farmer John's land.
2. One's labor is proportional to one's wealth.
3. George shouldn't say that he'll be in the library when he obviously won't.
4. I'll be back.
5. Who'll referee those kids' soccer game if not for your brother?

In the provided examples, the use of punctuation such as commas, apostrophes, and dashes are properly showcased to prevent confusion, ensure proper contractions, and maintain possessive case where needed.