【題目】Tony’s mum looks young and beautiful. It’s hard to imagine she is already in her .

A. fiftiesB. fifty

C. fiftiethsD. fiftieth

【答案】A

【解析】

試題分析：句意：托尼的媽媽看上去年輕漂亮。難以想像她已經(jīng)五十幾歲了。在某人幾十幾歲：in one’s +整十的復(fù)數(shù)（用基數(shù)詞），所以這里該用fifties。故選A。

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