题目内容
14．Sue lives on thetenth （ten） floor，but she walks upstairs every day．分析 Sue住在十楼，但她每天步行上楼．
解答 答案：tenth．
根据语境"Sue住在十楼．"和设空处前面的定冠词the以及后面的floor这个名词单数形式，判断设空处的数词需要用序数词作定语修饰floor，表示"第十层楼"．ten的序数词是tenth．故答案为：tenth．
点评 基数词强调数量，后面常跟名词复数，序数词强调顺序，常与the搭配，特指某一个，但名词前已有物主代词或名词所有格时，定冠词the要省略．
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Attn：Eighty yuan．
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Ann：No problem．Shall we meet at the gate of the park at four o'clock？
Betty：OK．See you then．
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