Practice Ex TOEFL Barron 6th_Ex 42_Auxiliary Verb_Pg 86_Structure

On the average, a healthy heart ___ to pump five tablespoons of blood with every beat.

• must

• ought

• can

• should

It is generally believed that Thomas Jefferson was the one who had researched and wrote the Declaration of Independence during the months prior to its signing in July 1776.

• generally believed

• wrote

• its signing

• in July 1776

In general, by the second year of production, the price of a new piece of technology ___ significantly.

• will decreased

• has decreased

• will have decreased

• will has decreased

Although some higher structures have been build in New York City, none characterizes the skyline better than the Empire State Building.

• some higher structures

• have been build

• characterizes

• better than

Research in genetics and DNA having had a profound influence on the direction of treatment for a large number of diseases.

• having

• profound

• on

• a large number

Bones composed chiefly of calcium, phosphorous, and a fibrous substance known as collagen.

• Bones

• composed

• chiefly

• known

A cure for juvenile diabetes ___ until more funds are allocated to basic research.

• won' t develop

• aren' t developing

• don' t develop

• won't be developed

During the past decade, twenty million college graduates spended more then fifty billion dollars in ten-year student loans.

• During

• spended

• more then

• ten-year

Civil engineers had better ___ steel supports in concrete structures built on unstable geophysical sites.

• include

• including

• inclusion

• included

There is no limit to the diversity to be finding in the cultures of people throughout the world.

• no

• finding

• cultures

• of people