Regarding as one of the leading figures in the development of the short story, O Henry is the author of many well- known American novels.

Society uses such human emotions as proud, shame, guilt, and fear to maintain itself.

A novel is a story long enough to fill a complete book, in that the characters and events are usually imaginary.

Developing new technologies are time-consuming and expensive.

I enjoyed talking to the people with that I met at the party last night.

Had it not been for you help me, I wouldn't have succeeded.

It is vitally important that she takes this medication night and morning.