问题
选择题
The Smiths live in ______ building. They use a lift to go up and down. [ ]
A. a 8-story
B. a 8-stories
C. an 8-stories
D. an 8-story
答案
答案：D
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The Smiths live in ______ building. They use a lift to go up and down. [ ]
A. a 8-story
B. a 8-stories
C. an 8-stories
D. an 8-story
答案：D