问题
选择题
I want to know _____ .
A．when will he come back
B．when he will come back
C．when he comes back
D．when is he coming back
答案
答案：B
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I want to know _____ .
A．when will he come back
B．when he will come back
C．when he comes back
D．when is he coming back
答案：B