Ответ:

2) Have you selled anything?

3) I have visited an open-air market

4) Have you and your friends spent all day in a shopping mall?

5) My parents have given me expensive presents

6) Have you been to a designer shop?

Объяснение:

I, we, they, you мы используем с вспомогательным глаголом have

He, she, it с has