Sentence examples for have become uncertain from inspiring English sources

The evolutionary relationships between various members of these three groups, however, have become uncertain, as comparisons between the DNA sequences of various microbes have revealed many puzzling similarities.

Exporters have always struck deals with customs and port authorities to lower their costs but since the coup and the coupmakers' anti-corruption drive, these have become uncertain.

While relations between Israel and Palestine and the Arab world have become uncertain, Zehava Ben's tour has opened up a window for peace as she has gained popularity not only in Israel, but in the Arab world as well.

Even the Administration's friends in Central America have become uncertain allies in the crusade against Nicaragua.

But early prognostication remains challenging, especially because the predictive values of clinical, biochemical, and electrophysiological variables have become uncertain after the introduction of TH [ 15– 17].

Clinicians have become uncertain about what to do with the many asymptomatic patients with mild biochemical abnormalities who increasingly displace ill patients as the face of cobalamin deficiency in medical practice, as important distinctions between clinical disease and biochemical changes blur (1).

But as the program's fate has become uncertain, so has theirs.

The flamboyant Philippines remains the exception, and the future there too has become uncertain.

They complained that the program's organization and focus had become uncertain.

Just when the replacement Alvin will join the world's small fleet of submersibles has become uncertain.

But their future has become uncertain since officials keen to expand the city started chopping parts of Makoko downNobbling nasty networks Criminals have long exploited data and mobile technology to their own ends.