There is somebody at the door .I go and see who it is .

There is somebody at the door .I go and see who it is . there is ( ）knocking at the door.GO and see who it is A nobo someone is knocking at the door （）i go and see who it is A s someone is knocking at the door .（）i go and see who it is A There is somebody knocking at the door .Go to see( ) it is. —Someone is knocking at the door. —Yes, I’ll go and see who Listen! ________ is knocking on the door. Go and see who it There is someone outside the door . Go and see who______is. There is somebody knoking at the door.Go to see________.为什么填 英语 .There's someone at the door.Can you go and see who _____ Who is knocking at the door?I think ___ is the postman?A、it this是特指There is someone outside the door .Go and see who____