The string of Peggy's sunbonnet had become untied-sohad her right shoe.

He stooped to fix a shoelace which had become untied.

Unfortunately Keith discovered at that crucial moment that one of his shoe laces had become untied.

A red kerchief had become untied and let loose a wave of black hair, which fell over her half bare shoulders.

On the way down the sleeves had become untied and the jacket had spread itself out upon the slide to its full breadth.

With the strokes of the fruits, the knot became untied.