A few days ago, another crack opened - one large enough to fit a picture window.

After a long while Alan opened the door a crack.

Suddenly the ground shifted and a crack opened in the floor.

But even as he said it, a great crack opened in the ground before the temple steps.

Sometimes we used to sit there for days until the crack would open.

She cracks open a peanut and offers it to me.

Any of these problems means that the crack will probably open again until proper repairs are made to the wall.

A crack had opened at the back of the cave, and was already a wide passage.

Five minutes later, a long crack opened in the black ice from his shoulders to the hole the fire had caused.

A crack opened on the ledge and he felt the Tower move.