The air had turned to water, and it was in his throat.

A dark cloud comes over the sun; in an instant the air has turned cool.

He went down sluggishly, as though the air had turned to water.

The outside air turned his sweat into a cold bath.

We put our gloves back on as the air turned cool.

Outside, the air had turned frigid, and there was snow on the ground.

But two hours later, the air had indeed turned balmy.

He seemed to have trouble moving, also, as if the air had turned to jelly.

The air had turned cold, and both children wore heavy clothing.

Then he looked up and what had seemed a despondent air turned suddenly into something of hope.