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