supply

该地区有可靠的供水。

The area has a reliable ___supply of water.

在伦敦，对廉价住房的需求远远超过了供应。

In London, demand for cheap housing far outstrips ___supply.

我可以向您提供我以前雇主的推荐信。

I can ___supply you with a reference from my previous employer.