Much of the pollution could be controlled if only ______.A．people would pay more attention
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Much of the pollution could be controlled if only ______.
A．people would pay more attention to the problem
B．governments would take effective measures
C．all sides concerned would take more efforts
D．farmers would use less artificial fertilizers
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正确答案：C
解析：第二段第一句：Whatever its underlying reasons, there is no doubt that much of the pollution caused could be controlled if only companies, individuals and governments would make more efforts．“无论根本原因是什么，毫无疑问，只要公司、个人和政府能够尽更大的努力，许多污染都是可以被控制的。”whatever关系连词，无论……，实际是whatever its underlying reasons are；caused作定语，修饰pollution，意为“造成的”；if only只要。