The question of whether there was an amphitheatre at Dougga has not been conclusively answered.

So far, however, investigators say that not one piece has conclusively answered the question of whether the explosion was caused by a bomb, a missile or mechanical failure.

The question of how neutrino masses arise has not been answered conclusively.

"But the unfortunate fact is, they have not conclusively answered the very serious questions that have been raised about environmental factors."

This can probably be answered conclusively only by historians when all the evidence and consequences are known.

Neither question has yet been conclusively answered.

This question has not been conclusively answered and both possibilities may be true in individual cases.

The many questions raised here, if not conclusively answered, are rousingly explored.

That had rather conclusively answered the question of whether or not the solar power-powered systems were still active.

The questions about the effect of monitor emissions on human health have not been conclusively answered, but MPR-2 compliance is a prudent precaution.