Battle for TOEFL - Structure

... ratchet is a wheel or bar that can move in only one direction.

• A

• It is a

• Although a

• There is a

Thomas Jefferson's achievements as an architect rival his contributions ... a politician.

• such

• more

• as

• than

The chief foods, eaten in any country depend largely on ... best in its climate and soil.

• it grows

• what grows

• does it grows

• what does it grow

Possibly the greatest advance in ... materials came with the invention of a cheap way to make steel.

• bridge-building

• building of bridges

• building a bridge

• bridges are built

..., snakes frequently subdue their prey without injecting poison.

• Contrary to general belief

• General belief contrary to

• Belief contrary to general

• Contrary belief general to

Two years after she was chosen president of the Texas State Senate, ... successfully for a seat in teh United Sattes Congress.

• Barbara Jordan's campaign being

• Barbara Jordan campaigned

• Campaigning for Barbara Jordan

• Barbara Jordan campaigning

The values of a people, their customs, and their perceptions of the world ... their language.

• are influenced

• be influenced

• influencing

• influence

Over a very large number of trials, the probability of an event's ... is equal to the probability that is will not occur.

• occurs

• will occur

• can occur

• occurring

... fashioned from a wick floating in a bowl of oil functioned according to the principle of capillary action.

• All lamps early

• Lamps all early

• All early lamps

• Early all lamps

Annie Jump Cannon, ... discovered so many stars that she was called "the census taker of the sky".

• a leading astronomer who

• who, as a leading astronomer,

• was a leading astronomer

• a leading astronomer,