Oraciones interrogativas en el discurso indirecto

Convierte las siguientes oraciones interrogativas indirectas en oraciones interrogativas directas. Tienes un ejemplo.
Ejemplo: I asked whether they had that sweater in green.
Do you have this sweater in green?
1. She asked if she could help me.
?
2. She asked what size I was.
?
3. She wondered if I wanted to try it on.
?
4. She wanted to know how it fitted.
?
5. She asked whether I would pay cash or by credit card.
?
6. She wondered if that was my first time in the shop.
?
7. She asked me where I had seen their advertisement.
?
8. She wanted to know how long I had had their loyalty card.
?
9. She asked me what my postal code was.
?
10. She wondered if I had enjoyed shopping with them.
?