TOEFL Grammar Skill 8

you will get a good grade on the exam provided _____

• studying
• study
• to study
• you study

Like Thomas Berger's fictional character Little Big Man,Lauderdale managed to find himself where _____ of important events took place.

• it was an extraordinary number
• there was an extraordinary number
• an extraordinary number
• an extraordinary number existed

____ show the relations among neurons, they do not preclude the possibility that other aspects are important.

• neural theories
• a neural theory
• although neural theories
• however neural theories

If ultraviolet radiation enters the Earth's atmosphere, _____ generally bocked by the ozone concentrated in the atmosphere.

• it
• it is
• so it is
• then it

Among human chromosomes, the Y chromosomes is unusual ______ most of the chromosome does not participate in meiotic recombination.

• in
• so
• and
• in that

____ while a ball-and-socket joint, the elbow is a simple hinge joint.

• while the shoulder
• while the shoulder is
• the shoulder is
• the shoulder

____ mostly made of granite, it also contains some human-made materials.

• the Empire State Building
• The Empire State Building is
• Although nthe Empire State Building is
• Although the Empire State Building ids built

Pressure differences make the eardrum vibrate _____ the ear.

• enters the sound waves
• as sound waves
• sound waves enter
• as sound waves enter

If scientific estimates are accurate, _____ with the Earth about 20,000 years ago.

• the Cañon Diablo meteorite collided
• the collision of the Cañon Diablo meteorite
• the Cañon iablo meteorite colliding
• colliding the Cañon Diablo meteorite

Legislation ___ in 1916 and 1917 gave the Wilson administration authority to intervene in the national economy if it proved necessary.

• it was passed
• was passed
• passed
• passes