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