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Словообразование упражнение №18

Read the texts below and decide what part of speech in A, B, C or D best fits each gap in the sentences.
Scarlet fever is an (1) _______ disease, caused by bacteria, which usually enter the body through the nose or mouth; it is transmitted from person to person by direct contact, that is, by sprays of droplets from the respiratory tract of an infected person, or by indirect contact through the use of utensils previously handled by an infected person. The disease most commonly (2) _______ children between the ages of two and ten The typical (3) _______ symptoms of the disease are headache, sore throat, chills, fever, and general malaise. From two to three days after the first appearance of symptoms, red spots may appear on the palate; bright red papilla (4) _______ on the tongue, giving it an appearance commonly called straw¬berry tongue. A characteristic skin eruption appears on the chest and usually spreads over the entire body except the face. The rash fades on pressure. The fever, which frequently runs as high as 40° to 40.6°C, generally lasts only a few days but may (5) _______ to a week or longer. The rash usually fades in (6) _______ a week, and at that time the skin begins to peel.
Scarlet fever may be (7) _______ by other diseases, for example, by pneumonia. Since the (8) _______ of penicillin, however, most instances of scarlet fever can be (9) _______ without the (10) _______ of permanent after-effects.


1.
infectious
infection
infect
infected

2.
affection
affected
affects
affecting

3.
initials
initial
initialize
initialized

4.
emerged
emerge
emerging
emergence

5.
extent
extending
extended
extend

6.
approximately
approximate
approximation
approximated

7.
complication
complicate
complicated
complicating

8.
introduce
introducing
introduced
introduction

9.
cure
cured
curing
cureless

10.
occurrence
occur
occurred
occurring