There is a widespread belief that the economical situation will improve.

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

The builders of the variety ancient cliff ruins scattered throughout the canyons and mesas of the arid Southwest of the United States are known as the cliff dwellers.

When you go to........... store, please buy........... bottle of ...........chocolate milk and........... dozen oranges. 

We are not allowed to enter this construction site. A block of flats is being built here and it is dangerous to walk because you may get hurt by a fallen brick or some other objects

The most of the energy used in our homes and factories is generated from coal, oil and natural gas

An electromagnet will remain magnetized only as longer as electricity flows through it

It is necessary that the director will sign all the copies, not just the top one

The oxygen in the air we breathe has no tasted, smell, and color.

I really hope my sister will apply for that new job; she will be so good with it

John has bought a dictionary, _    ?

Since the Great Depression of the 1930’s, social programs such as Social Security have been built into the economy to help avert severity business declines

Ocean currents that help transfer heat from the equator to the poles, thereby creating a more balanced global environment.

The symptoms of diabetes in the early stages are too slight that people don’t notice them

Before the invention of the printing press, books have been all printed by hand.

Air pollution, together with littering, are causing many problems in our large, industrial cities today.

The number of students attend the class dwindled until only two remained.

Both a term paper and a final exam is often required for a college class.

One responsibility of human beings is not to interfere with the actions of another people except in the face of injustice

Gwendolyn Brooks, which won a Pulitzer Prize for Poetry in 1950, had 75 poems published by the time she was twenty.

The society was set up to ...... endangered species from extinction.