Question

(3)
(a).
... addition, most of the medicines
that have been used by men are derived from
plants and animals.
Most of the Chinese medicines, for example, such
as ginseng and ginkgo, (b)
herb-based.
An example from the realm (c).
modern Western medicine is the drug
Vincristine'.
(4)
In one of these studies, psychologist Georg
Spilich used three test groups (a)..
people.
The first group (b) ...........
"nicotine-free” people, i.e. non-smokers.
The second group consisted of "nicotine
saturated" people, that is, smokers who wen
actively smoking (c) ......................... the time
the tests.
The third group consisted of "nicotine-deprived
people, that is, smokers who (d).
allowed to smoke for a period before and during
the tests.
The tests were all based on the subjects' response
(e) ....
... stimuli flashed on computer
This drug, which is derived from a jungle plant,
(d).
... in the treatment of
leukemia.
Many of those species that have not yet been
discovered may very likely cure cancer, AIDS, and
.
and
(e)
.......... of the other diseases
and virus-based illnesses of today.
In fact, one research scientist in the field of botany
...... concluded that in Costa
Rica's forests alone, 15 percent of the plant species
may have the potential as a treatment for cancer.
(a) (i) On
(ii) In
(iii) From
(iv) For
(b) (i) are
(ii) is
(iii) were
(iv) was
(c) (i) at
(ii) in
(iii) of
(iv) on
(d) (i) are used (ii) is used
(iii) have been used (iv) used
(e) (i) none
(ii) any
(iii) much
(iv) many
(f) (i) have
(ii) had
(iv) has been
(iii) has
screens.
In the first one, the subjects (f)..
pick out a target letter among an array of letters
which were flashed on the computer screen.
All they had to do (g) ...........
do (8) ..................... press the
space bar when they spotted the target letter
In this simple test, it was found (h).
the three groups performed equally well.
(a) (i) of
(ii) off
(iii) to
(iv) from
(b) (i) consists (ii) consist
(iii) consisted (iv) were consisted
(c) (i) on
(ii) in
(iii) from
(iv) at
(d) (i) do not
(ii) did not
(iii) was not
(iv) were not
(e) (i) of
(ii) to
(ii) with
(iv) at
(f) (i) have
(ii) had
(iii) has
(iv) had been
(g) (i) was
(ii) is
(iii) were
(iv) are
(h) (i) when
(ii) as
(iii) this
(iv) that​

Answer 1

Most of the medicines  that have been used by men are derived from  plants and animals.

Explanation:

• Most of the medicines  that have been used by men are derived from  plants and animals.  Most of the Chinese medicines, for example, such  as ginseng and ginkgo.
• In one of these studies, psychologist Georg  Spilich used three test groups  people.
• The first group "nicotine-free” people, i.e. non-smokers.
• The second group consisted of "nicotine  saturated" people, that is, smokers who were actively smoking
• The third group consisted of "nicotine-deprived  people, that is, smokers who were allowed to smoke for a period before and during
• the tests.
• The tests were all based on the subjects' response

Answer 2

Answer:

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