Dr. Bethune ________ working in spite of cutting his hand during an operation.

At a rough estimate, Nigeria is _________ Great Britain.

Did you watch the basketball match yesterday? —Yes. You know, Jeremy Shu-How Lin, who is one of my heroes, ________ in the match.

Helen learns to dance three times a week. Now she dances _____ Anita does.[ ]

There_____ a hospital in my hometown fifty years ago.