◎ 题干
—David, how old is your father this year?
—______. And we just had a special party for his _____ birthday last weekend.
A.Fortieth; fortyB.Forty; fortyC.Forty; fortiethD.Fortieth; fortieth
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◎ 解析
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◎ 知识点
    根据n多题专家分析,试题“—David, how old is your father this year?—______. And we just had a special party for his _____ birthday last weekend. A.Fortieth; fortyB.Forty; fortyC.Fort…”主要考查了你对  【基数词】【序数词】【时刻】【分数】  等知识点的理解和应用能力。关于这些知识点的“档案”,你可以点击相应的链接进行查看和学习。