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题库 / GMATAdvanced-SC-6
Indoor air pollution can threaten the health of closely confined farm animals and the workers who tend them and perhaps as well impairs the quality of such farm products like eggs, poultry, and pork.
perhaps as well impairs the quality of such farm products like
perhaps as well impairs the quality of such farm products as
perhaps also impairs the quality of such farm products like
may also impair the quality of such farm products like
may also impair the quality of such farm products as
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pay close attention we have "and", which triggers parallelism. In the 1st noun underlined Part we have Can threaten so we need a parallel verb to that, based on that Option A,B,C gets eliminated
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