for sale

这辆自行车是出售的。

This bike is ___for ___sale.

房子前面有一个“出售”的牌子。

There is a '___for ___sale' sign in front of the house.

商店里有很多东西在打折出售。

There are many things ___for ___sale in the shop.

这些旧书是出售的吗？

Are these old books ___for ___sale?