don't or doesn't?

My grandma ............. live with us. She lives in Athens.
1. don't
2. doesn't
I ............. like sailing. I like windsurfing.
1. doesn't
2. don't
They .............. know how to do this exercise.
1. don't
2. doesn't
Mandy............... want to come with us to the cinema.
1. don't
2. doesn't
You ............. play chess every day. You play chess only at the weekends.
1. don't
2. doesn't
His brother ........... go to work by bus. He always goes to work on foot.
1. doesn't
2. don't
Helen's sister ......... read comics. She likes reading History books.
1. doesn't
2. don't
We ............ always stay at home in the evenings. We sometimes go to the cinema or the theatre.
1. don't
2. doesn't