1. A: Have they come...
B: No, they haven’t.
2.A.: Have you seen ...
B: No, I haven’t
3.A: Has he stayed ...
B: Yes, she has.
4.A: Has Julia tried ...
B: No, she hasn’t
5.A: Have we packed ...
B: Yes, we have.
6.A: Has Mike bought ...
B: No, he hasn’t .
7.A: Has she booked ...
B: Yes, she has.
