一、选择题

1、My mother has to stay at home to look after my grandma, _______?

 A. hasn’t she  B. hasn’t my mother  C. doesn’t she     D.doesn’t my mother

2、 He has many friends at school, _____?

 A. has he    B. does he    C. doesn’t he     D. isn’t he

3、They have never been to America, _______?

 A. have they     B. haven’t they      C. don’t they     D. do they