Переведите и перепишите предложения, используя, где возможно, сокращения. 

I am a student. Am I a student? Yes, you are. 
We are students. Are we students? Yes, we are. 
He is a doctor. Is he a doctor? No, he is not. He is not a doctor. 
Are you doctors? Yes, you are. You are doctors. 
She is a teacher. They are teachers. He is a teacher. 
It is a dog. Is it a dog? Yes,it is. 
Ann is a first–year–student. She is a good girl