TOEFL Structure

The planet Mercury _______ rotations during every two trips around the Sun.

• three complete

• completes three

• the completion of three

• completing three of the

In prehistoric ________________ of western Utah was covered by Lake Bonnville.

• times, a large part

• times, there was a large part

• part of the time

• for large parts of time

The helicopter is able to hover in ____ powered rotors produce lift even at zero forward speed.

• flight because of the

• flying the

• the flying of the

• flight because the

The upper levels of the Sun’s atmosphere are very low ____________heats the gases there to very high temperatures

• dense on solar

• density, solar activity

• density, but solar activity

• density and activity of the Sun is

Created by the dissolution of limestone, the underground cave system ________ Mammoth Cave

is noted for its stalactites and stalagmites.

• is known as

• it is known to be

• known as

• to be known

Most slang terms are simply old words ________ additional new meanings,

• give

• given

• known as

• to be known

North Carolina’s Outer Banks are a chain of low, narrow islands __________ the mainland from the

frequent Atlantic storms in the area.

• they buffer

• that buffer

• to buffer them

• that they buffer

It is at the age of approximately eighteen months ________ children begin to make combinations

of two or three words.

• when many

• when are many

• when do many

• when have many of the

Story of a Bad Boy, a semiautobiographical novel by Thomas Bailey Aldrich, ranks high among

books _________ have incorporated their boyhood experiences.

• the Americans authors

• which are American authors

• in which American authors

• are those which American authors

In the La Brea tar pits of Los Angeles ________ which have been preserved from the Pleistocene

period.

• thousands of animals are

• thousands are animals

• the thousands of animals

• are thousands of animals