Write three sentences that use an apostrophe correctly. One sentence must use an apostrophe with a plural noun that ends in "s". The other two sentences must use the apostrophe in two different ways.

1. Tom’s room is unorganized.
2. I believe Americans’ should never use credit cards.
3. It’s extremely warm outside.

1 and 3 are fine.

In order to use the plural possessive (Americans'), there must be a noun right after the possessive for it to own.

Here are some examples:

The boys' toys were all over the front yard.
We wanted to see my friends' new performance.

Rethink #2 and repost.

1. Great job! The sentence "Tom's room is unorganized" correctly uses an apostrophe to indicate possession. It shows that the room belongs to Tom. When forming the possessive case for singular nouns, we add an apostrophe followed by an "s".

2. You almost got it right! To use an apostrophe with a plural noun that ends in "s", we simply add an apostrophe after the "s" without an additional "s". So the correct sentence would be "I believe Americans' should never use credit cards." This indicates that the belief refers to all Americans, not just one.

3. Perfect use! The sentence "It's extremely warm outside" demonstrates the contraction of "it is". In this case, the apostrophe replaces the letter "i" in "is". Contractions are used to combine two words into one, and the apostrophe indicates the missing letters.