There are floors in the building and my home is on the floor.A. twenty; fifteenth B. twenty; fifteenC. twentieth; fifteen D. twentieth; fifteenth 题目和参考答案——青夏教育精英家教网—

题目内容

There are _________ floors in the building and my home is on the _________ floor.

A. twenty; fifteenth B. twenty; fifteen

C. twentieth; fifteen D. twentieth; fifteenth

【解析】

试题分析：句意：这座大楼有20层。我家在第十五层。结合语境可知前一空用基数词表示数量，后一空用序数词表示顺序。故选A。

考点：考查数词辨析

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