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题库 / Prep2008E1-SC-243
Sulfur dioxide, a major contributor to acid rain, is an especially serious pollutant because it diminishes the respiratory system's ability to deal with all other pollutants.
an especially serious pollutant because it diminishes the respiratory system's ability to deal
an especially serious pollutant because of diminishing the respiratory system's capability of dealing
an especially serious pollutant because it diminishes the capability of the respiratory system in dealing
a specially serious pollutant because it diminishes the capability of the respiratory system to deal
a specially serious pollutant because of diminishing the respiratory system's ability to deal
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1. 要用especially而不是specially, 排除DE
2. because of 后面应该加 nouns，而此处很明显加了diminishing，错误，排除BE
3. capability in doing肯定是错的，没有这种用法，因此排除C
因此答案为A
PS. capability of doing的用法目前众说纷纭，没有定论，因此不能单靠这一点排除某一选项。
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