Mr. Smith is going to buy a new car, doesn’t he?

Inventing by Roger Bacon, the magnifying glass led to the creation of scientific tools which have produced immeasurable scientific progress

The bell signaling end of the first period rang loud, interrupting the professor’s closing comments.

The number of students attend  class dwindled until only remained.

The coal is the world’ abundant fossil fuel .

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

Nara hardly never misses an opportunity to play in tennis tournaments. 

Contrary to popular belief, bananas are grown on the soft stalk of a leafy plant and not on trees with wood trunks.

Disease is not as widespread than before because of better preventive medicine and vastly improved nutrition

Before his death, John Dewey saw his philosophy have a profound influences on education and thought in United States and elsewhere.

He's finished this test, _    ?

There is no limit to the diversity to be finding in cultures of people throughout the world

Several comet are discovered each year, but very few of them bright enough to be seen without aid of magnification

By the end of the month, I’ll be working for firm for a year.

Identify the error in each sentence:  It was the day before that the accident happened.

The number time he spends gardening is increasing every day.

Because the diamond is the hardest naturally occurring substance, it is used in industry for to cut, grinding, and boring other hard materials

All of  the mammals, dolphins are undoubtedly among friendly to human.

It was near end of prehistoric times thatfirst wheeled vehicles appeared.

No one would have attended the lecture if you told the truth about guest speaker

Hundreds of species of Hawaiian flowers have become extinct or rare  ............... land development and the grazing of wild goats.