Cells in mature animal tissues are not, as we had thought, irreversibly differentiated.
We used to think that cells in mature animal tissues are irreversibly differentiated.
We have confirmed our belief that cells in mature animal tissue are irreversibly differentiated.
A dog chases another dog outside.
I think it would fail at crushing steel cans.
I know you didn't hear what Schwartzkopf said about Pete Arnett.
Before any judicial challenge to provisions of the rule can be made, there are administrative procedures to be followed.
There is a bird in the grass.
A highjumper knocking the bar midair in high jump event.