1. to

I am going to the store.

2. two

I have two dogs and one cat.

3. too

Is he coming too?

4. their

We are going to their house today.

5. there

The house is over there.

6. they're

They're the best of friends.

7. weather

The weather outside is frightful.

8. whether

I'm going whether you like it or not.

9. blue

She has blue eyes.

10. blew

The train blew it's whistle.

11. fair

He never plays fair.

12. fare

The fare to ride the bus is $2.00.