21.   They believe the people who died were infected when they ate beef or other products from these cows, a theory that remains controversial, though evidence is accumulating.

22.   They concluded that studies are essentially hypotheses in progress and add that people should reserve judgment while evidence accumulates.

23.   Without going very far into it, however, the evidence quickly accumulated that the raid itself had been botched in many ways.

24.   As evidence accumulates, researchers are becoming more confident of their predictions that temperatures will rise.

25.   Evidence has been accumulating of a breakdown in everyday services.

26.   He also said evidence is accumulating, now that the laws have been in effect for several years, that show they can be harmful to teens.

27.   Meanwhile, evidence is accumulating that the refugees have been subjected to atrocities by rebel forces.