Simple Sentences:
* They left their keys on the table.
* The children are playing in their backyard.
* The birds built their nest in the tree.
* The students finished their homework early.
* The team celebrated their victory.
Complex Sentences:
* Although they were tired, they continued their journey.
* The hikers found their way back to the trail after getting lost.
* The company announced their new product line, which will be available next month.
* The friends shared their stories and experiences with each other.
* While they were waiting for the bus, they read their books.
Sentences with Different Meanings:
* They are going to their parents' house for dinner. (possessive)
* The dogs wagged their tails happily. (possessive)
* They are proud of their achievements. (possessive)
* The children were playing in the park, and their laughter echoed through the air. (possessive)
* Their house is on the corner of Elm Street and Maple Avenue. (possessive)
* The team will wear their new uniforms for the game. (possessive)
* They gave us their opinions on the matter. (objective)
* The hikers lost their way in the forest. (objective)
* The company announced their new product line, which will be available next month. (objective)
These are just a few examples. You can use "their" in many different ways to create a wide range of sentences.