The distraction of these treasures was a loss for mankind that no amount of money could .
One of the most important questions they had to consider was _________ of public health.
The computer was used in teaching. As a result, not only_________, but students became more interested in the lessons.
Scientists also have no idea how long it will be before all wild animals in the cages _____.
She brought with her three friends, none of _________ I had ever met before.
What do you mean, there are only ten tickets? There _________ be twelve.