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 Someoneisringingthedoorbell.Goandsee

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 Someoneisringingthedoorbell.Goandsee

 Someone is ringing the doorbell. Go and see_________.

A. who is he          B. who he is  

C. who it is         D. who is it

【回答】

 B

知识点:复合句

题型:选择题