Pregunta 1
Pregunta
One of the most effective vegetable protein substitutes is the soybean……....used to manufacture imitation meat products.
Respuesta
-
which can be
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it can be
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who can be
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can be
Pregunta 2
Pregunta
………..1000 species of finch have been identified.
Respuesta
-
As many as
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As many
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As much as
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Much as
Pregunta 3
Pregunta
The first electric lamp had two carbon rods from which vapor serves to conduct the current across the gap.
Respuesta
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The first
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which
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serves
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to conduct
Pregunta 4
Pregunta
A thunderhead, dense clouds that rise high into the sky in huge columns, produce hail, rain or snow.
Pregunta 5
Pregunta
According to the economic laws, the greater the demand, …….. the price.
Respuesta
-
higher
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high
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the higher
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the high
Pregunta 6
Pregunta
Although no country has exactly the same folk music like that of any other, it is significant that similar songs exist among widely separated people.
Respuesta
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no country
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like
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that
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widely
Pregunta 7
Pregunta
Despite of the Taft-Hartley Act which forbids unfair union practices, some unions such as the air traffic controllers have voted to strike even though this action might endanger the national security.
Respuesta
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Despite of
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forbids
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such as
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to strike
Pregunta 8
Pregunta
The Continental United States is………. that there are four time zones.
Respuesta
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much big
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too big
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so big
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very big
Pregunta 9
Pregunta
Benjamin West contributed a great deal to American art:........
Respuesta
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painting, teaching, and lecturing
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painting, as a teacher and lecturer
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painting, teaching, and as a lecturer
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painting, a teacher, and a lecturer
Pregunta 10
Pregunta
Operant conditioning involves rewarding or punishing certain behave to reinforce or extinguish its occurrence.
Respuesta
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behave
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to reinforce
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or extinguish
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its occurrence
Pregunta 11
Pregunta
There is an unresolved controversy as to whom is the real author of the Elizabethan plays commonly credited to William Shakespeare.
Respuesta
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There is
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whom
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is
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commonly
Pregunta 12
Pregunta
A catalytic agent such platinum may be used so that the chemical reaction advances more rapidly.
Pregunta 13
Pregunta
Upon hatching ………
Respuesta
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young ducks know how to swim
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swimming is known by young ducks
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the knowledge of swimming is in young ducks
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how to swim is known in young ducks
Pregunta 14
Pregunta
The observation deck at the World Trade Center………… in New York.
Respuesta
-
was highest than any other one
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was higher than any other one
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was highest that any other one
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was higher that any other one
Pregunta 15
Pregunta
When a patient’s blood pressure is much higher than it should be, a doctor usually insists that he will not smoke.
Respuesta
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much
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than it
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should be
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will not
Pregunta 16
Pregunta
It was the invent of the hand-held electronic calculator that provided the original technology for the present generation of small but powerful computers.
Respuesta
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It
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was
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the invent
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the present
Pregunta 17
Pregunta
……….. is necessary for the development of strong bones and teeth.
Respuesta
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It is calcium
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That calcium
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Calcium
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Although calcium
Pregunta 18
Pregunta
Located in the cranial cavity in the skull the brain is the larger mass of nerve tissue in the human body.
Respuesta
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in
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the brain
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larger
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human body
Pregunta 19
Pregunta
Alike other forms of energy, natural gas may be used to heat homes, cook food, and even run automobiles.
Respuesta
-
Alike
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may be used
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to heat
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run
Pregunta 20
Pregunta
An organ is a group of tissues capable to perform some special function, as, for example, the heart, the liver, or the lungs.
Respuesta
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is
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of tissues
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to perform
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for example
Pregunta 21
Pregunta
……….. withstands testing, we may not conclude that it is true, but we may retain it.
Respuesta
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If a hypothesis
-
That a hypothesis
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A hypothesis
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Hypothesis
Pregunta 22
Pregunta
Insulin, it is used to treat diabetes and is secured chiefly from the pancreas of cattle and hogs.
Respuesta
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Insulin, it is
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to treat
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is
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chiefly
Pregunta 23
Pregunta
Not until a monkey is several years old……. to exhibit signs of independence from its mother.
Respuesta
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it begins
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does it begin
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and begin
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beginning
Pregunta 24
Pregunta
Since Elizabeth Barrett Browning’s father never approved of ……. Robert Browning, the couple eloped to Italy, where they lived and wrote.
Respuesta
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her to marry
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her marrying
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she marrying
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she to marry
Pregunta 25
Pregunta
In autumn, brilliant yellow, orange and red leaves are commonly to both the Sweet Gum tree and the Maple.
Respuesta
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In autumn
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commonly
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to
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and