Air (1)...is caused of ill health in human being.....(2) a lot of countries, there (3) .....laws limiting the amount of smoke Wich a factories can (4).... although there is not enough information on the effects of smome on the atmosphere....(5) have proved that air pollution causes lung disease s. The gases from exhausts of cars have also ....( 6) air
Pollution in most cities . The lead in petrol produces a poisonous gas , Wich is often ....(7) in busy streets circled by high buildings . Children ....(8) live in areas where there is ....(9) lead in the atmosphere can not think as ...(10) as other children , and are clumsy when they use their hands
1 a,pollute
b.pollution
C. Polluted
D. Polluting
2 a, on
B,at
C, for
D,in
3 a,is
B, are
C, was
D, were
4 a, to produced
B, produced
C, producing
D,produce
5 a, singers
B, teachers
C, doctors
D, engineers
6 increase
B increasing
C, to crease
D, increase
7 a collected
B, collect
C, collecting
D, collects
8 who
B, which
C, what
D,why
9 a, lot of
B,a lot of
C,a lots
D, a lots of
10 a, more quickly
B, quick
C, quickly
D, quicker