Those who had already purchased tickets were instructed to go to gate first immediately.

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

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.

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

Developing new technologies are time-consuming and expensive.

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

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

Câu 5: The earth is the only planet with a large number of oxygen in its atmosphere.