问题
选择题
It took us ____ to finish this work. [ ]
A. three hour and a half
B. three and a half hour
C. three and half hours
D. three and a half hours
答案
答案：D
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It took us ____ to finish this work. [ ]
A. three hour and a half
B. three and a half hour
C. three and half hours
D. three and a half hours
答案：D