It was not until the end of prehistoric times that the first wheeled vehicles appearing

Tom said that he was trying to carry out some campaigns to protect environment and will encourage others to do so.

A warning printed on a makeshift lifebuoy says: “This is not a life-saving device. Children should be accompany by their parents.”

If I had enough money, I would have travelled around the world.

Not one in one hundred children exposed to the disease are likely to develop symptoms of it.

The most sensitive way to resolve a family problem is by open discussion.

It was not when he talked to her that he knew the truth.

By the mid-nineteenth century, land was such expensive in large cities that architects began to conserve space by designing skyscrapers.

Although Nam worked very hard, but he didn’t pass the final exam.

Most of the houses on the street was built in the previous century.

Neither of the men arresting as terrorists would reveal information about his group.

It is interesting to compare the early stylized art forms of ancient civilizations to the modern abstract forms of art.

The harder he tried, the worst he danced before the large audience.

Bells told people of happy events, such as weddings and born or, sometimes had to announce unpleasant events such as a death

When mining for gold, you must first obtain the gold ore and then apart the gold from the ore.

She only had a twenty-dollars bill with her when she landed at Healthrow airport.

Instead of calling off the meeting, maybe we can just put it over until next month.

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.

The bus was plenty of people who had spent many a happy hour shopping at the new.

Both Mr. and Mrs. Smith are explaining the children the rules of the game.

My father asked me where had I gone the night before.