问题
选择题
I don't know ________. [ ]
A. where does he come from
B. what is his name.
C. how old he is
D. when will he leave
答案
答案：C
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I don't know ________. [ ]
A. where does he come from
B. what is his name.
C. how old he is
D. when will he leave
答案：C