In very early times, people around the fire were entertained by storytellers with stories of heroes’ wonderful actions and victory.

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

United States is aimed at develop friendly relations among nations based on respect for the principle of equal rights and self-determination of people.

Looking from afar, the village resembles a small green spot dotted with tiny fireballs.

I can’t go out tonight because I have too many work to do.

Excavations in some villages on the east bank(A) of the Euphrates River have revealed(B) an ancient community that had been laying (C) under later (D) reconstructions of the city of Babylon.

Conservation is the safeguarding and preservation of nature resources.

Although most species of small birds gather in groups at feeders provided by bird-watchers, the bright red cardinals usually appears alone or with its mate.

A motion picture provides us with both entertainment but also knowledge.

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

By the turn of the century, most of the inventions that were to bring in all the comforts of modern living has already been thought of.

Paris is much more exciting as I expected.

It is very difficult for human beings fighting pollution.

Robots in the home might not be enough creative to do the cooking, plan the meal and so on.

The bones of the elderly are more prone to fractures than of young people.

By measuring the color of a star, astronomers can tell how hot is it.

Neither the Minister nor his colleagues has given an explanation for the chaos in the financial market last week.

She has disappeared three days ago, and they are still looking for her now.

Ralph wishes that he went to the bank this morning before he went to work.

Mrs. Stevens, along with her cousins from Canada, are planning to attend the firework display in Da Nang, Vietnam.

My sister told me that she had met my teacher at the supermarket yesterday.