这些多少钱？抱歉，它们不卖。

How much are these? Sorry, they're not for ___sale.

黑色星期五的促销活动上，所有电子产品都打七折（或：所有电子产品都享受7折优惠）。

All electronics are 30% off during the Black Friday ___sale.

这件T恤正在打折促销。

The ___sale of this T-shirt is now at a discount.