Everyone wants to reduce pollution. But the pollution problem is (1)_____ complicated as it isserious. It is complicates so much pollution is caused by things that benefit people.(2) _____, exhaust from automobiles causes a large percentage
of air pollution. But the automobile (3)_____ transportation for millions of people. Factories dischargehe much (4)_____the material that pollution the airand water, but factories give employment to a large number of people . Thus, to end (5)_____ greatly reduce pollution immediately, people would have to (6)______  using many things that benefit them. Most of the people do not want to do that, of course. But pollution can be(7) _____ reduced in several waays. Scientistsand engineer can work to find ways to lessen the (8)_____ of pollution that such things as automobiles and factories cause. Goverments can pass and enforce laws that(9)_____ businesses and traffic to stop, or to cut down on certain polluting activities. 
 1.  A. as                  B. more                   C. less                 D. Like
 2.  A. Specific          B. while                   C. Such as              D. Like
 3.  A . takes               B. affords                 C. carries                 D. Provides
 4.  A. about                 B. for                    C. of                           D. With    
5.   A. or                    B. and                      C. as well                   D. Then
6.   A. start                 B. continue               C. stop                       D.go on
7.   A. carefully           B. unexpectedly             C. gradually           D. Little
8.   A. way                   B. figure                        C.number                D. Amount
9.   A. forbid                 B. prevent                    C. make                   D. require