Sentence examples for tests have failed from inspiring English sources

Prior rounds of stress tests have failed to provide reassurance.

Initial DNA tests have failed to link any of the athletes to the accuser.

Tests have failed to find a cause, nor is the illness responding to drugs.

Many previous tests have failed because of improper selection of these molecules.

Several rounds of DNA-based tests have failed to identify about 9,000 of the remains.

A majority of empirical tests have failed to support the hypothesis that avian nest predation increases near habitat edges.

All of North Korea's previous rocket tests had failed to reach orbit, according to Western officials.

A few hours later, Mexican authorities responded that lab tests had failed to find any connection to a SARS-like virus or even a flu virus.

This determination clearly had little to do with technology, for the schedule did not permit time for adequate testing -- and since then one of the two tests has failed.

In a phone call with the Chinese foreign minister, Wang Yi, Kerry said China's economic and diplomatic support for the North – although it has condemned recent nuclear tests – had failed.

What he and the others seem not to have noticed is that Seracini's tests had failed to answer the central question they were supposed to resolve: to restore or not to restore?