For him to be re-elected, what is essential is not that his policy works, but that the public believe that it is. (全国研考,97-18)
《攻读硕士学位研究生入学英语考试指导》(清华大学出版社,1998,p.249)指出,上题的答案D的is应改为will。而《历年英语考研试题精解及模拟试题》(中国人民大学出版社,2000,p.52)则认为“在is之后加‘popular’”。请问孰是孰非。
此题的改法应当是将D项的is改为does。统观全句句意可以看出，句中的it指代的是his policy。它的谓语本应使用works，但是，根据惯用法，此处要使用替代词does来代替它。请对比下列有关do用作替代词的实例：
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He earns a lot more than I do. 他赚得比我多得多。
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My secretary worked later than I did at the office. 我的秘书比我下班晚。
[句意]为了他能再次当选,最重要的并不在于他的政策行之有效,而在于公众相信他的政策行之有效。
请做下面的英语试题：
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If she doesn't tell him the truth now, he'll simply keep on asking her until she ____. A. does B. has done C. will do D. would do(全国四级,98.6-53)
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The boy spent as much time watching TV as he ____ studying. A. did B. was C. does D. had(全国四级,02.1-69)
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America will never again have as a nation the spirit of adventure as it ____ before the West was settled. A. could B. was C. would D. did (全国六级,90.1-61)
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Acute hearing helps most animals sense the approach of thunderstorms long before people ____. A. do B. hear C. do them D. hearing it(全国英语专业四级,00-41)