1.   My brother held that secret over me for thirty years.

2.   And the Vatican has held the secret to this very day.

3.   Both funnel through the same developmental pathways, and it is those pathways, which are still not well understood, that hold the secrets to physiology.

4.   But he said other elements of the files did hold important secrets.

5.   But even these congenial storytellers held secrets.

6.   But whether heavily guarded tractor-trailers laden with the radioactive material actually started rolling was one of the most tightly held secrets in civilian government.

7.   Everest still holds some secrets.

8.   For his entire political career, he held his secret.

9.   Further research into the enzyme could lead to heartier seeds in wheat and corn plants and possibly hold secrets to the aging process in humans, the scientists said.

10.   How could a structure as transparent as the Farnsworth House hold a secret?