Use "beyond any doubt" in a sentence

1. (b) What has the passing of time demonstrated beyond any doubt?

2. Beyond any doubt, however, profound globe akinesia offers a broader safety margin to the ophthalmic microsurgeon.

3. It was a bear, beyond any doubt, a blue bear of Tibet lean with hunger, its jaws Aslaver, a snarl rending its throat

4. By contrast, the independence of the coordinator who, in allocating slots decides upon the possibilities of access to the airport, must be beyond any doubt.