Nylon, a synthetic done from a combine of  water, air and by product a coal , was first introduced in 1938.

Choose the correct answer to each of the following questions. "The Imperial Citadel of Thang Long was first built during the Ly Dynasty and then _____ by subsequent dynasties"

After searching for evidence in the house, the police concluded that the thief must have come through the window and stole the property while the family was asleep.

One of the most fficult questions in defining sleep is “What are the functions of sleep?”

In the field of acting theory, controversy arises over of whether is acting a behavioral or a mental process

Choose the correct answer to complete the sentence. "Last week, a team of foreign volunteers _____ a campaign to help students with disabilities"

The com mouse is about four inches long and has a three – inched tail.

If a person were to look up from the bottom of a deep well, he will be able to see stars in the middle of day.

Choose the correct answer to complete the sentence. "Her parents didn't agree with ______ she wanted to do."

Interest in automatic data Processing has grown rapid since the first  calculators were introduced in 1950.

Students in the United States often support themselves by sitting, working in restaurants, or they drive taxi cabs

Economists have tried to discourage the use of phrase “underdeveloped nation” and encouraging the more accurate phrase “developing nation” in order to suggest an ongoing process.

Mark the letter A, B, C, or D to indicate the word that differs from the other three in the position of primary stress in each of the following questions.

Before she moved to California, with its much milder climate, Betty found that health improved considerably.

Petroleum  is composed of cmplex mix of Hydrogen and Carbon.

Alike other forms of energy, natural gas may be used to heat ome, cook food, and even run automobiles.

To survive, most birds must eat at least half their own weigh in food every day .

Roommate is not very clever student, but he certainly works very hard indeed

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. " _____ more help, I could call my friend"

It was a nasty memory. Do you remember both of us wearing sunglasses to avoid ............   by the supervisors?