If it hadn’t been for the wind, the fire would never have spread so fast A. Even without the wind, the fire would have spread just as fast. B. It was the wind that caused the fire to spread

Even without the wind, the fire would have spread just as fast.

It was the wind that caused the fire to spread at such a speed.

Had there been a wind, the wind would have spread even faster.

The force of the wind affected the way the fire spread.