Reading passages

319- This passage is largely concerned with ----- .
A) how people in France get infected with parasitic worms
B) the measures that should be taken to get rid of parasitic worms in French children
C) the harmful effects parasitic worms have on people in France
D) the life cycle of several parasitic worms commonly found in France
E) the three common kinds of parasitic worms found in France, and their characteristics
320- We infer from the passage that the eggs of the tapeworm ------- .
A) are the cause of itching in children
B) are laid in the muscles of various animals
C) lead a double life in the human intestine
D) leave the human body by way of the excrete
E) quickly develop into 6 m worms
321- The author explains that of the three main kinds of parasitic worms in France, the round worm ------- .
A) is often found in gardens
B) does not lead to symptoms in the body very often
C) grows in human excrete when it is used as manure
D) is the one that most often causes irritability in the body
E) is more commonly found in adults than in children
Typhus used to be known as "jail fever" as it was very common in prisons; but it is a fact that overcrowding, poverty, and bad hygienic surroundings anywhere are suitable conditions for epidemics of this disease. Improved conditions in industrialised countries have made it unusual, since typhus is carried from one person to another by infected body lice. Typhus comes on suddenly with a rise in temperature to about 39°C, but within three or four days it may be as high as 42°C. There may or may not be a rash at this time, and in the second week, when the temperature is at its highest level there is delirium, physical weakness, and a weak pulse.
322- According to the text, typhus is commonly found ------- .
A) in especially overcrowded and dirty places
B) among school children or babies
C) in contemporary industrialised countries
D) in the neighbourhoods close to prisons
E) in areas where the population is on the rapid increase