【单选题】Approximately (three - fourths) of (the earth's) surface (are) covered (with) water.
A. three-fourths
B. the earth’s
C. are
D. with
网考网参考答案：C
网考网解析：
[分析] 分数词或百分数词修饰名词作主语时，谓语动词的变化随名词的单复数变化。本句中谓语动词与名词surface一致。改“are”为“is”。
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