Every student  must make up their own study list of the classes he is going to take at the beginning of the quarter 

The Secret Garden, it is a book written years ago for children, has become popular again among adults in the film version.

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

The authorities are worried about the increase of drug abuse.

Salmon lay their eggs and die in fresh water, although they live in salt water when most of their adult lives.

Choose the best option:

Deforestation is destroying large areas of tropical rain forest.

If dinosaurs would have continued roaming the earth, man would have evolved quite differently.

Our civilization is so commonplace to us that rarely we stop to think about its complexity

The first vaccine ever developed was used to combat and fight a smallpox, a disease resulting from infection by a virus.

The Nobel Prize winning candidate, accompanied by  his wife and children, are staying in Sweden until after the presentation.

Recently in the automobile industry, multinational companies have developed to the point where such few cars can be described as having been made entirely in one country.

To receive a degree from an American university, one must take many courses beside those in one’s major field.

Mosquitoes will accepts the malaria parasite at only one stage of the parasite’s complex life cycle.

The peasant’s wife, who have been married for four times, has just had her third baby

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

The graphics ability of a computer depend on the speed of its processor and the size of its RAM

Hurry! We're got to leave the house immediately. Otherwise, __________ the opening ceremony. 

Choose the correct answer to complete the sentence. "Deforestation is one of the _____ environmental threats to the ecological balance in the world"

Choose the correct answer to complete the sentence. "Having denied the ______ for the environment it caused, the factory was forced to close down"

Choose the correct answer to complete the sentence. "Scientists predict that by 2030, the rainforest will have ______ smaller by 40%. "

Only averaged about 5 feet above sea level, the Marshall Islands would disappear under the Pacific should the Arctic icepack melt.