4. Are all pneumonias caused
by bacteria?

Gap-fill exercise

Fill in all the gaps, then press "Check" to check your answers. Use the "Hint" button to get a free letter if an answer is giving you trouble. You can also click on the "[?]" button to get a clue. Note that you will lose points if you ask for hints or clues!
Pneumonia is the generic of
inflammation of the . Besides
bacterial pneumonias, there
pneumonias caused by virus, ,
toxic pneumonias, etc.