How to use "occur" in a sentence

But no organic law can ever be framed with a provision specifically applicable to every question which may occur in practical administration

Finally, she kissed the book, held it to her heart and waited for the evening, when she knew that something special was going to occur.

A year later, Tina has reason to believe the accident did not occur as reported - that her son is alive, is being held against his will, and is in desperate need of her