If there were an opportunity to escape, she had to use common sense.

This period would have been the last opportunity to escape.

However, this command had given him the opportunity to escape.

Somewhere along the road there would be an opportunity to escape.

Maybe in the process, they'd find an opportunity to escape.

It might provide an opportunity to escape and turn the tables on her.

Even if he had, Jack would have taken the opportunity to escape from the room.

Had he taken the opportunity to escape, to be rid of her?

Generally, you cannot expect to have a good opportunity to escape.

He thought his best opportunity to escape would be while working on the prison farm.