Physiologically, the period of adolescence is marked by active growth, especially in the skeletal and muscular systems and in a certain

Martin Luther King Jr.’s magnificent speaking ability enabling him to effectively express the demands for social justice for Black Americans.

Public health experts say the money one spends avoiding illness is less than the cost to be sick

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

When scientists discovered how soap works, it became possible to do synthetic detergents out of Petroleum.

............. winter is usually cold, but .................. winter of this year is warm. 

First raise your right hand, and then, you should repeat after me

Choose the correct answer to complete the sentence. "We need to cut down on the ________ of carbon dioxide into the atmosphere."

In the beginning, radios cost much more than they do today because they turned out slowly and expensively by hand

The shore patrol has found the body of a man who they believe to be the missing marine biologist

The world oceans have risen on average of 6 inches over the past 100 years, which has been considered as an evidence that global warming has an effect.

The authorities are worried about the increase of drug abuse.

The term “metabolism” refers to the chemical changes which by living things transform food into energy

He never goes home before he will finish his work.

New uses for plastics were found during the 1950’s and 1960’s in medicine, space, research, industrial, and architecture.

Since fireworks are dangerous , many countries have laws preventing business to sell them.

Interestingly, the United States both produces or uses more crude oil than any other nations

The environment can be defined as all living and nonliving items in an area at a specify time.

Rita plays .......... violin and her sister plays .......... guitar. 

Cotton fiber, like other vegetable fibers, are composed mostly of cellulose

The extraordinary beautiful of orchids makes them the basis of a multimillion-dollar floral industry .