Have your parents ever visited your new office?.........Yes, they have / No, they haven't
Has the baby slept?...................................................Yes, she / No, she
Have Jim and you called your fathers?........................Yes, / No,
Has he had dinner yet.................................................Yes, / No, he hasn't
Have they called me...................................................Yes, they have / No, they
Has Sarah read that book..........................................Yes, she / No, she
Have you read Romeo and Juliet?..............................Yes, I / No, I
Has she left school?...................................................Yes, she has / No,
Has the President visited any African countries?..........Yes, he / No, he hasn't