我很喜欢那条裙子，但我要等到它打折了再买。

I love that dress, but I'm waiting until it's ___on ___sale before I buy it.

我买了那条短裤，因为它们舒适、便宜，而且正在打折。

I bought the shorts because they were comfortable, cheap, and ___on ___sale.

我一直想要的那个电子游戏这周终于打折了。

The video game I want is finally ___on ___sale this week.