1.   But, in passing, there are tantalizing signs of promise.

2.   Despite the early specter of danger, and few signs of concrete advances toward breaking the standoff, there were some tantalizing signs of movement.

3.   She turns up tantalizing signs that it may, but when the CDC publishes a paper saying it has been unable to replicate her findings, her support evaporates.

4.   To some, however, they were tantalizing signs of possible life.