a.)

2: I haven’t brought my credit card.
3: Has Anna gone been shopping?
4: Has your sister ever worked as model?
5: You haven’t worn your new shirt.
6: Have I ever told you about my holiday in Greece?
7: The shopping Centre’s never been so crowded.
8: I´ve never used eBay.



b.)
2
A : Have you ever sold anything on eBay?
B: Yes, I have.
A: What did you sell?
B: Some CDs. I didn´t want them anymore.

3
A: Have you ever worn any expensive jewellery?
B: No, I haven´t.

4
A: Have you ever lost your wallet?
B: Yes, I have. I left it in a trolley at the supermarket.

5
A: Have you ever had an argument with a shop assistant?
B: Yes, I have. I didn´t have the receipt, so I couldn´t change someboots.