When my lost briefcase was returned with my year-long research results intact, I felt tremendously relieved. It was as if a huge heavy weight ______________ from my shoulders. 

In its pure State, aluminum is a weak metal, but when combined with elements such as copper or magnesium, it is formed alloys of great strength.

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

Prevented the soil from erosion, the trees are planted by the farmer many years before were which stopped the flood from reaching his house.

In 1977, Kathleen Battle was hired by the New York Metropolitan Opera, where her became the star soprano

Learners can feel very ...... if an exercise is too difficult.

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

Choose the correct answer to complete the sentence. "Global warming has ______ impact on water supplies."

He said “Good morning ” in a most friendliness way.

The young are thought to be the future leaders of the country, and it is essential that they should understand their heritage as full as possible.

Without any hesitation, he did a decision not to take the course

 Scientists sent ............ expedition to ............ Mars during .......... 1990s. 

A computer networks usually includes either selected employees of a particular business or or people who do not work together but have similar interests.

Zoos in New Orleans, San Diego, Detroit, and the Bronx have become biological parks where animals roams free and people watch from across a moat.

Jobs which are highly paid in some countries are badly paid in other.

Dwelling primarily in the ice Northern Polar seas, beluga whales are characteristically small, white, agile, and elusive.

If the airplane ticket wasn’t expensive, I could fly to Singapore for my holidays.

Living in New York, apartments cost more to rent than they do in other smaller cities

The Vermont Elememary Science Project, according to its founders, are designed to challenge some of the most widely held beliefs about teaching 

Nobel Prizes are awarded to people who excellent in their fields above and beyond what is expected from scholars.

Australian koalas are furry, gray animal that live in trees and feed on leaves.