It rained when the plane landed in Beijing.这句话对吗?怎么翻译?

问题描述:

It rained when the plane landed in Beijing.这句话对吗?怎么翻译?

不对,应该是:It was rainning when the plane landed in Beijing。飞机在北京着陆时,天正在下雨。

我想应该是It was raining when the plane landed in Beijing.吧
当飞机降落到北京的时候,天正在下雨.