試題詳解

試卷：無年度 - 2001年5月托福閱讀#20934 | 科目：TOEFL(Test of English as a Foreign Language)托福

試卷資訊

試卷名稱：無年度 - 2001年5月托福閱讀#20934

科目：TOEFL(Test of English as a Foreign Language)托福

20. It can inferred from the discussion about ducks that the molting of their flight feathers takes.
(A) a year
(B) a season
(C) several months
(D) a few weeks

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