Polite requests

You are looking at two dresses, a red one and a blue one. You want to try on the blue dress.

You want the sales assistant to bring a size 7.

You want to see some red shoes.

You are looking at two sweaters,a pink one and a green one. You want to try on the green sweater.

You don't understand what the sales assistant said.

You don't know what time it is.

You want to pay by credit card.

Can I pay by credit card, please?

Can I try on the blue dress, please?

Could you tell me the time, please?

Could you repeat that, please?

Could I see some red shoes, please?

Could I try on the green sweater, please?

Could you bring a size 7, please?