问题
选择题
— Why was it ____ you failed to attend the conference?
— Because I suddenly fell ill. [ ]
A. which
B. how
C. that
D. where
答案
答案：C
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— Why was it ____ you failed to attend the conference?
— Because I suddenly fell ill. [ ]
A. which
B. how
C. that
D. where
答案：C