Question

【题目】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

Answer 1

【答案】A

【解析】试题分析：句意：这栋建筑物有二十层，我们家在第十五层上。此题考查基数词和序数词，根据句意，应选A。