TOEFL (Structure)

The North Pole ____ a latitude of 90 degrees north.

• it has

• is having

• has

• which is having

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

• sunning

• the sun

• gets sun

• sunny

According to the World Health Organization, ____ any of the six most dangerous diseases to break out, it could be cause for quarantine.

• were

• there were

• were they

• they were

Nimbostratus clouds are thick, dark grey clouds ____ forebode rain.

• what

• which

• what they

• which they

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

• the sides are

• all sides by

• it is the side of

• its sides

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

• what is affordable

• able to afford

• they can afford it

• they can afford

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

• Coral reefs

• Some types of coral reefs

• While some types of coral reefs

• There are many types of coral reefs

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

• use gene therapy

• using gene therapy

• gene therapy uses

• they use

____ appears considerably larger at the horizon than it does overhead is merely an optical illusion.

• When the Moon

• That the Moon

• The Moon

• The Moon which

The greenhouse effect occurs ____ heat radiated from the sun.

• the Earth's atmosphere traps

• does the Earth's atmosphere traps

• when does the Earth's atmosphere traps

• when the Earth's atmosphere traps