Your sister used to visit you quite often, ________?

Medical research indicates that large amounts of Histamines can responsible for cold, high fever, and other respiratory reactions.

There are some wild roses whose flowers smell sweetly

Of the much factors that contributed to the growth of international tourism in the 1950s, one of the most important was the advent of jet travel in 1958.

Scientists are still uncertain of what the universe originated millions of years ago.

California has more land under irrigation than any another state.

There will be an increase in tax for those earning in excess of twice the national average ________.

Nancy said that she went to the supermarket before coming home.

He has made a lot of mistakes in his writing because his carelessness

However types of raw materials are used in making paper, the process is essentially the same.

Mark the letter A, B, C, or D to indicate the underlined part that needs correcting in each of the following questions:

Water has been vital to the development and survivor of civilization.

Mark the letter A, B, C or D to indicate the underlined part that needs correcting in each of the following questions.

Tom is the kind of person to who one can talk about anything.

In England as early as the twelfth century, young boys enjoyed to play football.

In Egypt, female students from disadvantaged families _______ scholarships to continue their studies.

When I came back, I realized that my camera had been disappeared.

When the children realized that they were by themselves in the dark, they became really frightening.

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

Choose the best answer to complete each of the following sentences: 

Smoke from factories can cause air ________.

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

I couldn’t understand what the passage said, so I had my friend ____ it for me.

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.

Choose one word or phrase marked A, B, C, or D that best complete the preceding sentence:

 It is__________ to go swimming.