求帮忙把下面所有英文翻译成正确的中文，谢谢！

求帮忙把下面所有英文翻译成正确的中文，谢谢！
Some Confusing Words
•x09Its is a possessive adjective:
- The university is proud of its students.
•x09It’s is a contraction for "it is":
- It's raining.
•x09Their is a possessive adjective:
- The students have their books.
•x09There is an expression of place.
- My books are over there.
•x09They're is a contraction for "they are"
- Where are the students? They're in class.