Someone is ringing the doorbell. Go and see .A. Who is heB. who he is C. Who is itD. who i

问题补充：

Someone is ringing the doorbell. Go and see .

A. Who is he

B. who he is

C. Who is it

D. who it is

答案：

A. Who is he

B. who he is

C. Who is it

(答案→)D. who it is

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