question_answer

DIRECTIONS: In each of the following paragraph, a part of sentence is left unfinished. Beneath each sentence, four different ways of completing the sentence are indicated choose the best alterative among the four. Influenza develops after the virus enters a person's nose or mouth. It causes muscle pain, sudden high body temperature, breathing problems and weakness ___________. But it can be very dangerous. It is especially dangerous to the very young, the very old and those with weakened defences against disease.

A) The virus stopped spreading completely after the treatment

B) Generally, most people feel better after a week or two

C) Then, they changed the temperature and humidity levels

D) But they did not really know why until recently