Someone is ringing the doorbell．Goand see _______．

Someone is ringing the doorbell．Goand see _______．

A.whois he

B.who he is

C.who is it

D.who it is

答案及解析： D

解析：

see后的宾语从句应用陈述语序。如果指心目中未知的男女时通常用it。