Complete the following passage by filling in each blank with the correct answer.
Identify your choice by writing the corresponding letter A, B, C or D on your answer sheet.
Air pollution is the cause .............(46) ill health in human beings. In a lot of countries there
are ............(47) limiting the amount of smoke factories can produce although there is not
enough .............(48) on the effects of smoke on the atmosphere. Doctors have ..............(49)
that air pollution causes .............(50) diseases. The gases from the exhaust of cars...............
(51) also increased air pollution in most cities. The ...................(52) of petrol produces a
poisonous gas, which is often collected in busy streets circled by high buildings. Children
................(53) in areas where there is a lot of lead in the atmosphere can't think as ..............
(54) as other children, and are clumsy when they ................(55) their hands.
46. A. from B. on C. over D. of
47. A. laws B. ideas C. problems D. regulations
48. A. news B. article C. information D. newspaper
49. A. agreed B. pointed C. disagreed D. proved
50. A. lung B. heart C. liver D. stomach
51. A. had B. have C. has D. having
52. A. water B. lead C. gas D. exhaust
53. A. lived B. live C. to live D. living
54. A. quick B. slowly C. quickly D. slow
55. A. touch B. use C. handle D. collect