Though he did not develop sign language, Laurent Clerc brought it on America from France

Ozone is an unstable faintly bluish gas that is the most chemical active form of Oxygen.

Esperanto is an unique language because it was created by a man called Ludwig Zamenhoff.

One of the four underlined parts marked A, B, C, D in each sentence is not correct in standard English. Identify them: 

If the doctors find in the remedy, a lot of people would be saved. 

Philosophy, the inquiry into the nature of  human knowledge, it is still a very popular subject among university students

Life expectancy has increased a great deal in spite of modern medicine and technology.

Choose the correct answer to complete the sentence. "Centuries ago, man discovered that removing moisture from food helped _______ it."

.................. Mekong River is .............longest river in.................... Vietnam. 

Canada is made up of ten provinces and two territories, with governmental powers being divided between the federal government or the provinces.

It is time the government helped the unemployment to find some jobs.

Her application for a visa was turned down not only because it was incomplete and incorrectly filled out but also because it was written in pencil

I wish you ______________ making that noise. It's bothering me. 

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

Trang An Scenic Landscape Complex, ___________as a World Heritage Site, is famous for its cultural value, natural beauty, ____________ value, and preservation of heritage.

The teacher decided to fail the student with the grounds of his poor performance in tests and too small progress

Since it lives in the desert, the collared lizard depends from insects for water as well as for food.

Advertising it provides most of the income for magazine, newspapers, radio, and television in the United States today

Friends advise her to stop doing the housework because her old age.

In 1991, Antonia Novello, the Unites States Surgeon General launched several programs to address particular problem that young people have

Humus is formed during soil microorganisms decompose animal and plant material into usable elements by plants 

We call her as ‘Auntie Flo’, though she is not really in any relation to us

Lan never goes out at night,  _    ?