_____ 2/ _____ 3/ _____ 4/ _____ 5/ _____ 6/ _____ (23-28) CHOOSE THE WORD OR PHRASE THAT BEST FITS THE BLANK SPACE IN THE FOLLOWING PASSAGE
1/ _____ 2/ _____ 3/ _____ 4/ _____ 5/ _____ 6/ _____
(23-28) Choose the word or phrase that best fits the blank space in the following passage:
Air pollution is a (23)___________ of ill health in human beings. In a lot of countries there
are laws limiting the amount of smoke (24) ________ factories increasingly produce. Although
there isn’t (25) ___________ information on the amount of smoke in the atmosphere, doctors
have (26) ________ that air pollution causes lung diseases. Poisonous gases from the exhaust of
cars have (27) _________ increased air pollution in most city. The lead in petrol produces a
poisonous gas which often (28) __________ in busy streets surrounded by high buildings.