问题
选择题
It ____ 2 days _____ we know the result of the exam. [ ]
A. is, when
B. was, before
C. won't be, when
D. won't be, before
答案
答案：D
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It ____ 2 days _____ we know the result of the exam. [ ]
A. is, when
B. was, before
C. won't be, when
D. won't be, before
答案：D