问题
选择题
The man _____ will go _____. [ ]
A. downstairs; to upstairs
B. downstairs; upstairs
C. downstair; to upstair
D. downstair; upstair
答案
答案：B
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The man _____ will go _____. [ ]
A. downstairs; to upstairs
B. downstairs; upstairs
C. downstair; to upstair
D. downstair; upstair
答案：B