一声很响的雷声震动了窗户。
A loud ___a ___clap ___of ___thunder shook the windows.
我们正要离开时,一声雷响让我们犹豫了。
We were about to leave when ___a ___clap ___of ___thunder made us hesitate.
狗在听到第一声雷响时就躲到了床底下。
The dog hid under the bed at the first ___a ___clap ___of ___thunder.