A smile can be observed, described, and reliably identifying : it can also be elicited and manipulated under experimental conditions.

Chocolate is prepared by a complex process of cleaning, blending and roasting cocoa beans, which must be grounded and mixed with sugar.

Although they reflect a strong social conscience, Arthur Miller's stage works are typical more concerned with individuals than with systems

An involuntarily reflex, an yawn is almost impossible to stop once the mouth muscles begin the stretching action

Halley's Comet had its first documented sighting in 240 B. C. in China and ............................. it has been seen from the Earth 29 times.

Alongkian-speaking Native Americans greeted the Pilgrims .................................. settled on the eastern shores of what is now New England.

The first building to employ steel skeleton construction, ...........................................................

According to most psychological studies, body language expresses a speaker's emotions and attitudes, and ot also tends to affect the emotions and attitudes of the listen.

Precious metals, gems and ivory have been used to make buttons, but most buttons are made of .................... wood, glass or plastic.

Any critic, teacher, librarian, or poet who hopes to broaden poetry's audience faces the difficult challenge of persuading skeptical readers .................................