People in every part of the world readily and easily communicates by means of electronic mail.

Of all the art-related reference and research library in North America, that of the Metropolitan Museum of Art in New York City is among the largest and most complete.

Women in many parts of the world have had lower status than men, which the extent of the gap between genders varies across cultures and times.

Women nowadays have more free to participate in social activities.

The Games' organizers faced significant bed shortages because the record number of more than 13,000 athletes and officials who attended the 2006 Games

Little have people done to alleviate the sea pollution caused by the factories in central Vietnam, haven’t they?

Because her sickness she didn’t take part in the English competition held in Sunday.

Please tell us the reason when he left without saying goodbye.

David, who mother is Vietnamese, speaks both Vietnamese and English fluently.

The shopkeeper warned the boys don't learn their bicycles against his windows.

The assumption that smoking has bad effects on our health have been proved.

The sates school system in England can be divided into two levels of educated: primary and secondary

By the time Robert will finish writing the first draft of his paper, most of the other students will have completed their final draft.

Air pollution, together with littering, are causing many problems in our large, industrial cities today.

Dinosaurs became extinct millions of years ago because of the earth's climate changed drastically.

Working provide people with personal satisfaction as well as money.

He is the second person be killed in that way.

There is a severe famine in Somalia, and thousands of people are dying from hunger.

Jason’s professor had him to rewrite his thesis many times before allowing him to hand it in.

There are many different ways of comparing the culture of one nation with those of another.

Abraham Lincoln was a good president and was self-educated, hard working and always told the truth.