问题
选择题
Do you know ________? [ ]
A. when will he come back
B. when he will come back
C. when does he come back
D. he will come back when
答案
答案：B
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Do you know ________? [ ]
A. when will he come back
B. when he will come back
C. when does he come back
D. he will come back when
答案：B