Помогите очень нужно вставить неправильные глаголы
— I can't do it. I have ... it

4) — Why aren't you taking Rex out, Chris?
— I have already ... him out, mum. We have just come back.
5) — Why aren't you eating anything, Polly?
— Thanks, but I am not hungry. I've just ... a sandwich.
6) — Why isn't Sue helping with the decorations?
— She has ... to buy postcards.