Question

【题目】There are __________ in the building, and Tom lives on ___________.

A. twenty floors, the twentieth floors

B. twenty floors, twentieth floor

C. twenty floors, the twentieth floor

D. twenty floor, twentieth floors

Answer 1

【答案】C

【解析】

试题句意：这座楼有20层，汤姆住在第20层楼上。楼层数用基数词，floor要用复数形式；在哪一层楼，用序数词形式，floor用单数形式。故答案为C。