一辆车高速驶过拐角，紧接着我就发现自己躺在了地上。

A car came speeding round the corner, and ___the ___next ___thing ___I ___knew, I was lying on the ground.

我们刚才还在聊天，转眼间我就已经在和三个陌生人打牌了。

We were just chatting, and ___the ___next ___thing ___I ___knew, I was playing cards with three strangers.

我一定是晕过去了，因为再醒来时，我发现自己躺在医院的病床上。

I must have fainted, because ___the ___next ___thing ___I ___knew, I was waking up in a hospital bed.