119
cause
the disease in themselves, into 20
volunteers, following successful tests on animals.
The volunteers' immune systems were found to be as good as those of people who have naturally
contracted the infection through a mosquito bite and recovered.
112- The passage states that scientists……… .
A)have just been successful in finding an effective
vaccine against malaria
B)illegally carried out tests on more than 500 people
C)forced people to take part in their experiment to
find a cure for malaria
D)have been looking for a way to protect people from malaria for over two decades
E)have so far found approximately one million volunteers
to take part in their tests
113-The passage gives us the information that malaria ……. .
A)is fatal for more than 500 million people per year
B)mostly affects aged
people who live in Africa
C)will soon be eliminated from the Earth due to this discovery
D)has spread to the rest of the
world from Africa
E)is a disease transmitted by mosquitoes
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