Most of the magnesium used  United States comes from the sea water.

Mark the letter A, B, C or D on your answer sheet to indicate the word or phrase that is OPPOSITE in meaning to the underlined part in each of the following questions: Affluent families find it easier to support their children financially. 

Every scientist knows that gravity is the force that maintains earth and the planets in its orbits around the Sun.

I would never have believed ____ it with my own eyes. 

Mining over 2,000 years ago, copper one of the earliest known metals.

You have to use a magnifying glass so that see some of the minute details.

Do you think that the humans will ever be able to live in other planets?

Our primary goal is to teach students to discover the truth. But we have also other aims, such as provide them with knowledge or to teach them to work consciously

Genetic engineering is helping researchers unravel the mysteries of previously incurable diseases so that they can get to its root causes and cures.

Carrie Chapman Call organized League of Women Votes after successfully campaign for the constitutional amendment that gave women the right to vote

If I ____ him yesterday, I would have to come back tomorrow. 

When you passed the town lock, did you notice what time was it?

Choose the correct answer to complete the sentence. "______ in Thanh Hoa Province, the Citadel of the Ho Dynasty was added to UNESCO's World Heritage List in 2011."

Choose the correct answer to each of the following questions. "Scientists ____ on the site found many ancient tools, tombs and pottery, and made some important archaeological discoveries."

Anyone interested in the use of computers can learn much if you have access to personal computer.

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

After the police had tried unsuccess to determine to who the car belonged, they towed it into the station.

The most visi remind of the dose relation between the United States and France is the famous Statue of Liberty, which stands in New York Harbor

The environment can be defines as all living and nonliving items in an area at specify time.

Under any circumstances will late arriva be admitted to the theatre before the inter.

Some of plants in this store require little care, but this one needs much more sunlight than those.