Jack had to skip breakfast ; otherwise, he will be late for class.

Neither of the girls have turned in term papers to the instructor yet.

I don't think that I'm acquainted ________ him. 

In that age computers, it is difficult to imagine how tedious the work of accountants and clerks must have been in past.

Petroleum  is composed of complex mix of Hydrogen and Carbon.

His roommate is not very clever student, but  he certaiy works very hard indeed 

Engines used space shuttles are much larger and more strong than the ones used in jet planes.

Jeff and Gloria went to pick out carpeting and decoration, including furnitures, for new VIP lounge that was opening on the third floor

I thought this book was rather dull at first, but I’ve changed my mind

Diseaseis not widespread than before because of better preventive medicine and vastly improved nutrition.

He never goes home before he will finish his work

A light year is the distance that light travels in one year calculated using the speed of 186,284 miles the econd as a base.

Snapping turtles are easily recognized because of the large head, the tail and the shell that seems unsufficiently to protect body.

Being a nurse involves being cheerful, working unsocial hours, and come home with me smelling of infectant

By studying the fossils pollen, which extremely resistant to decay, researchers can gain useful information about vegetation of the past

It was very nice ________ you to do my shopping for me. Thank you very much. 

Although the social sciences different great deal from one another they share common interest of human relationships

Generally speaking, magnitude 1.0 earthquake on the Richter scale is detected by instruments but not person 

Most country music songs are deeply personal and deal with (themes of love, laonely, and separation

With its strong claws and many protruding tooth, a gopher is a excellent digger.

The Homestead Act of 1862 granted 160 acres of land for settler who would spend five year on the land.