问题
选择题
The conference ________ a full week by the time it ends. [ ]
A. must have lasted
B. would have lasted
C. will have lasted
D. has lasted
答案
答案：C
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The conference ________ a full week by the time it ends. [ ]
A. must have lasted
B. would have lasted
C. will have lasted
D. has lasted
答案：C