－Howoldisyourdaughter? － .Wehadaspecialpartyfor...

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－ How old is your daughter ?

－ . We had a special party for her party yesterday .

A. Nine , nine. B. Nine , ninth . C. Ninth , ninth .

【解析】基数词和序数词的考查。nine是基数词，只表示数目，ninth是序数词，表示顺序。她九岁，用nine，为她的第九个派对用ninth，所以选择* B 。