When asked what original intention led them to volunteer, about half of___ said they were willing to devote themselves.
The world today _____ different without the amazing discoveries produced by great scientists.
No one knows for certain how the first Americans arrived in _____ is now the United States.
A journal is not necessarily a reliable record of facts, for the writer’s impressions _____ colour the telling of events.
She seated herself at a small table in the restaurant, waiting _____.
Most online classes let students learn _____ their own pace.