The moment of opportunity would arise when he bent down to lay the injured girl on the stoop.

And you never know when such moments might arise.

Still, whenever hotel life threatened to veer too close to the absurd, a moment would arise to remind everyone of what had brought them together.

Maybe sometime, should the right moment arise, she would suggest it to Leah.

The moment had arisen when he had to make his choice, there and then.

He can't think of anything, so he delays, hoping that the right moment will arise.

A moment of the most delicate sort had arisen.

Then, when the moment arose he encouraged her to go to the police with the story.

With all the drivers out, another crucial moment arose.

A moment later there arose to the surface a beautiful White Swan.