1. It’s and Its

2. It’s It's is a contraction for it is or it has.
It’is= it’s it’has=it’s
If you can replace it's in your sentence with it is or it has, then your word is it's; otherwise, your word is its
It's been good to know you. 
Contraction: it has
It's a bird! It's a plane! 
Contraction: it is

3. its
Its is a possessive pronoun meaning, more or less, of it or belonging to it
Its is the neutered version of his and her. Try plugging his into your sentence where you think its belongs. If the sentence still works grammatically then your word is indeed its.
The dodo bird is known for its inability to fly. 
Possessive pronoun: its inability = the dodo bird's inability

4. And  its‘ is not a word

5. Practice
The dog licked __________ lips when it saw the big, juicy bone.

6. Practice
Sally announced, “__________ Maria’s birthday today!”

7. Practice
Dad doesn’t think __________ a good idea to play outside today.

8. Practice
The mother cat and __________ kittens are taking a long nap.

9. Practice
When do you think __________ going to rain?

10. Practice
Our school is very proud of __________ students’ hard work.

11. Practice
The football team won __________ final game.

12. Practice
“__________ time to go to school,” my mom exclaimed.

13. Practice
My teacher said that __________ important to read every day.

14. Now you’re turn!
Write a sentence for each of the following words. Make sure that you are using the word correctly.
You’re and your
Too, two and to
Its and it’s
There, they’re and their