Me llamo Miguel. Tengo un hermano gemelo Mateo. (1) (Nuestro Mi Su) hermano y yo estudiamos en la misma universidad. Somos altos morenos y simp and aacuteticos pero (2) (nuestra nuestros mis) madre di?
1) "mi", since you are talking about your brother.2) "nuestra", since you are talking about the mother of both of you - and the mother is singular, and feminine.
