Mr. Brown bought ..............new car ..................last week. 

The medical problems of parents and their children tend to be very similar to because of the hereditary nature of many diseases.

They are known that colds can be avoided by eating the right kind of food and taking exercise regularly.

It took the mayor over an hour explanation to the other members of the board why he had missed the last meeting.

The organizers of the charity were more than surprised at how many people lined up to receive the clothes donating by the outdoing mayor.

Scientists believe that by altering the genetic composition of plants, it is possible to develop specimens that are resisting to diseases and have increased food value.

In a person’s lifetime, the brain can store 100 trillion pieces of informations.

In the early twentieth century, there was considerable interesting  among sociologists in the fact that in the United States the family was losing its traditional roles.

While studying the chemistry of human body, Dr. Rosalyn Yalow won a Nobel Prize for the research she conducted on the role of hormones.

The health of our children is being ...... by exhaust fumes.

Genetic engineering is helping researchers unravel the mysteries of previously incurable diseases so that they can get to its root causes and find cures

There are only ...........few seats left for …………… tonight's musical at ...........university. 

A City University Professor reported that he discovers a vaccine which has been 80 % effective in reducing the instances of tooth decay among small children.

It is time the government helped the unemployment to find some jobs.

The Joshua tree is marked by their sword shaped leaves and greenish white flowers.

Most sand dunes are always in motion as wind pushes sand upward one side of each dune, over the top, and down the other side.

When T.S. Eliot’s “The Wasteland” appeared in 1922, critics were divided as to how good it was written

Tom didn’t believe in us, and it took along time to convince him.

Too much water makes plants turning brown on the edges of their leaves.

In 1984, the world population rose to over 4.7 billion, up almost 85 million from an estimate made the year ago.

I wish I ____ more careful with my money in the future.