His phone isn't cheap, it's expensive. Are they colleagues? Yes, they are. Are their apartment is small? No, it isn't. Are your dreams true? Yes, they are. Is her favourite singer is Tagarina? No, she isn't. Are you doctors? No, we aren't. Mom's bag isn't light, it's heavy. Are you in home? Yes, I am. Is grandmother's shawl dark? Yes, it is. Are their cat smart? Yes, it is. Are your favourite city is Pskov? No, it isn't.