1. The tourist is prevented from entering a country if he does not have ____ passport.

A. an operative      B. a valid                     C. an efficient              D. an effective

2. The new secretary has written a remarkably ____ report only in a few pages but with all the details.

A. concise            B. clear                        C. precise                    D. elaborate

3. With prices _____ so much, it’s hard for the company to plan a budget.

A. fluctuating        B. waving                    C. swinging                 D. vibrating

4. Californians and New Englanders speak the same language and ____ by the same federal laws.

A. stand                B. conform                  C. abide                       D. sustain

5. The long-awaited Hubble Space Telescope, _____ to orbit the Earth next March, will observe some of the oldest stars in the sky.

A. subject             B. owing                      C. available                  D. due

6. Experts say walking is one of the best ways for a person to _____ healthy.

A. preserve           B. stay                         C. maintain                  D. reserve

7. The patient has been _____ of the safety of the operation.

A. assured            B. guaranteed               C. entrusted                 D. confirmed

8. The patients believe that the doctor knows exactly how to put them _____.

A. correct