[文法] 一題文法(單複數)

[recary (recary)]

1.___ 3 million persons suffer memory loss from aging and other causes.

  (A)An estimated  (B)The estimate of   (C)It is to be estimated

  Ans: (A)


 【疑惑】請問這題選(A)的話該怎麼解釋An.....persons呢？(為什麼有an後面又有s呢？)

  Many thanks!


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→ dunchee:慣用法。(一個幫助記憶這用法的方式: an estimated number
→ dunchee:然後"3 million persons"是表示整體的數字
→ dunchee:http://www.learnersdictionary.com/search/estimate
→ dunchee:選 Verb，然後找 estimated -> 例句
→ dunchee:http://www.ldoceonline.com/dictionary/estimate_2
→ recary:非常感謝 (筆記中...)