问题
选择题
The conference came to ____ end at 11:00 last night, but we all think it was ____ failure. [ ]
A. the; 不填
B. 不填; a
C. an; 不填
D. an; a
答案
答案：D
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The conference came to ____ end at 11:00 last night, but we all think it was ____ failure. [ ]
A. the; 不填
B. 不填; a
C. an; 不填
D. an; a
答案：D