have sale

例句：

1. 1. The store is having a sale on all its electronics today.
   这家商店今天对所有电子产品进行特价销售。
2. 2.They have been selling the house for months now.
   他们几个月来一直在卖这所房子。
3. 3. We need to buy some supplies before we have a sale.
   在我们开始促销之前，我们需要购买一些必需品。