1.- It's a beatiful day , isn't it?
2.-Martha is angry ,isn't she?
3.-I'm late, aren't I?
4.-You can play the violin, can't you?
5.-You went to Costa Rica in 1990,didn't you?
6.-I am in house.
7.-I am thinking of you.
8.-You are eating what you like.
9.-He is ill of the heart.
10.-is he sad?