What was Ben doing when it began to rain heavily?

开始下大雨时本在做什么？

They were working in the fields when it began to rain.

他们正在田里干活儿，突然下起雨来了。

When it began to rain, Ben was helping his mom make dinner.

开始下雨时，本在帮妈妈做晚饭。

Mum and I were just going out when it began to rain.

我和妈妈刚要出去，天就开始下雨了。

The skies grew dark and it began to rain.

天渐渐黑了，又开始下雨。

As soon as we got home, it began to rain.

我们一到家, 天就下雨了.

As soon as he got home, it began to rain.

他一到家就开始下雨了.

It began to rain and we scurried for shelter.

下起雨来，我们急忙找地方躲避。

Hardly had we started when it began to rain.

我们刚出发，就开始下雨了。

It is reported that soon afterward it began to rain.

据说之后不久就开始下雨了。