Opa, bom dia!
a) My father is a doctor, and yours? (My = eu; yours = seu, sua)
b) His bike is bigger than mine. (His = dele; mine = minha, meu)
c) I don't allow you to interfere in my life. (my = minha, meu)
d) Your principles are not better than ours. (ours = nosso, nossos)
e) Because of the flood, they lost their homes. (their = seus, suas)
Espero ter ajudado. :]
