...........Lake Erie is one of five Great Lakes in ........... North America 

Since the average age of families has fallen, therefore more and more women have been able to join the labor force

To those who favorite free trade, the revival of barter can suggest nothing less than a disaster.

Choose the best option:

The area is roped off because the water is seriously polluted.

There is not equivalent to this word in any other language.

Choose the correct answer to complete the sentence. "Having seen people suffer global warming consequences, people decided________ carbon footprints."

In many areas of the world, people need clothing for protection the weather.

Had we known the traffic would be so bad, we did not drive back from work so early.

The biologist found some pollutants, a little of which can be considered very harmful to fish and other living organisms in the river.

It has been found that the length of light or dark periods influence certain activities of flowering plants

Everyday in summer, but especially at the weekends, all kinds of vehicles bring crowds of people to enjoy the various attraction.

Yogurt contains a higher percentage of lactic acid than another fermented milks, and it is rich in B-complex vitamins.

The graphics ability of a computer depend on the speed of its processor and the size of its RAM

A number of the Pacific Islands are volcanoes that have pushed up from the ocean floor, the others are the tops sunken mountain ranges

In the United State, the Cabinet consist of a group of advisers, each of whom is chosen by the President to head an executive department of the government.

Although there are new drugs on the market, deaths from malaria are being increasing in some parts of the world

Bats use echoes of their own high – frequency sounds to detect food and avoiding obstacles.

Because helicopters are capable of hovering in midair, they are particularly useful for rescue missions, military operates, and transportation.

With cable broadband, you can go from one web page to another much quickly than you can. With a dial-up modem or DSL, and you can load web pages more readily.

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions.

There are no easy ways to learn a foreign language, _________?

Pictures of the surface of the planet Venus was received yesterday from the space probe “Explorer”, which was launched last year.