我们听到了一声雷响。

We heard ___a ___clap ___of ___thunder.

突然，一声雷响打破了寂静。

Suddenly, ___a ___clap ___of ___thunder broke the silence.

暴风雨以一声雷响开始。

The storm began with ___a ___clap ___of ___thunder.