英語三級(jí)每日口語(4.20):I’d like a refund.

I'd like a refund.
    我想要退款。
    今天的幾個(gè)句子是有關(guān)退款的：
    1.You should ask for a refund.
    你應(yīng)該要求退款。
    2.I wonder if I can get a refund for this.
    不知是否能退款？
    3.Can I have my money back?
    我可以退款嗎?