_______ the calculation is right, scientists can never be sure that they have included all variables and modeled them accurately.
She was _______whether to follow her husband to go abroad or to stay at home to look after her parents.
A British mother wrote a cookbook, _______ healthy versions of traditional meals that helped her survive a life-threatening heart condition.
Scientists conclude that female cats tend to favor their right paws when _______ complex tasks.
There are hundreds of people desperate to _______ an orphan whose parents were killed in the Haiti earthquake.
The European Central Bank yesterday _______ the document was genuine but refused to make any further comment.