The sentence that correctly uses apostrophes is:
"Pat's friend just called to ask if Tom's brother will be at your birthday party."
Explanation:
1. In this sentence, the apostrophes are used to indicate possession or contractions.
2. "Pat's" uses an apostrophe to show that something belongs to Pat (friend in this case).
3. "Tom's" uses an apostrophe to show that something belongs to Tom (brother in this case).
4. Correct apostrophe usage helps clarify ownership or contraction in the sentence.
