Pure sodium immediately combines with oxygen when is exposed to air.

Owing to their superior skill, highly competitive athletes have been known to win contests and break records even when suffered from injuries, physical disorders, and infections.

She made some very complementary remarks about my English, saying that I spoke quite fluently and comprehensibly.

Mark the letter A, B,C or D on your answer sheet to indicate the underlined part that needs correction in each of the following questions

       New sources of energy have been looking for as the number of fossil fuels continues  to decrease.

Taking a trip to the foreign country is a good way to practice a second language, but it is too expensive for many people.

I am now in my attempt winning a place at the same university to my brother.

So extensive the lakes are that they are viewed as the largest bodies of fresh water in the world.

Platinum is a rare and value metal, white in color and easy to work.

The progress made in space travel for the early 1960s is remarkable.

A lot of athletic and non-athletic extracurricular activities are available in Vietnamese high-schools, either public and private.

The grass needs cutting, so let us have one of the men to take lawn- mower and do it.

The nitrogen makes up over 78 percent of the Earth’s atmosphere, the gaseous mass surrounding the planet.

I saw the blind man crossed the busy road without any help.

The techniques of science and magic are quite different, but their basic aims – to understand and control nature, they are very similar.