People in the United States take walking on the sidewalk as a form of exercise.

The people living in the United States will not be faced with water shortages.

A．Y

B．N

C．NG

Which of the following kills the most people in the United States？

A．Accidents.

B．Heart disease.

C．Cancer.

D．Smoking.

How many people are there in the United States in 1987？

A．259 million.

B．117 million.

C．175 million.

D．240 million.

A.most

B.perfect

C.having

D.site

A．inspect

B．expedited

C．uphold

D．reinstall

The United States has always acted as a______for people seeking fame and fortune.

A．magnet

B．magnitude

C．magnate

D．magnificence

A.Reagan

B.Carter

C.Kennedy

D.Nixon

Researchers in the United States carried out the study with the help of _______.

A．young people

B．some old people

C．men doctors

D．woman doctors

Business people and educators in the United States

A．are mainly responsible for the health of the national economy.

B．are concerned more with the productivity of the individual worker.

C．are sensitive to the unemployment rate.

D．are concerned with the development of useful skills.

A、USA Today

B、the Washington Post

C、the New York Times

D、People