1. 1. The North Pole ........ a latitude of 90 degrees north.

• it has

• is having

• which is having

• has

2. 2. The city of Beverly Hills is surrounded on ........ the city of Los Angeles.

• its sides

• the sides are

• it is the side of

• all sides by

3. 3. ........ greyhound, can achieve speeds up to thirty-six miles per hour.

• The

• The fastest

• The fastest dog

• The fastest dog, the

4. 4. Marmots spend their time foraging among meadow plants and flowers or ........ on rocky cliffs.

• gets sun

• sunning

• the sun

• sunny

5. 5. The greenhouse effect occurs ........ heat radiated from the Sun.

• when does the Earth's atmosphere trap

• does the Earth's atmosphere trap

• when the Earth's atmosphere traps

• the Earth's atmosphere traps

6. 6. The Rose Bowl, ........ place on New Year's Day, is the oldest postseason collegiate football game in the United States.

• takes

• it takes

• which takes

• took

7. 7. Experiments ........ represent a giant step into the medicine of the future.

• using gene therapy

• use gene therapy

• they use

• gene therapy uses

8. 8. ........ off the Hawaiian coastline are living, others are dead.

• While some types of coral reefs

• Some types of coral reefs

• There are many types of coral reefs

• Coral reefs

9. Nimbostratus clouds are thick, dark gray clouds ........ forebode rain.

• what

• which

• what they

• which they

10. Some economists now suggest that home equity loans are merely a new trap to push consumers beyond ........ .

• they can afford

• they can afford it

• what is affordable

• able to afford