Somebody is knocking at the door.Who ___ it be
someone is knocking at the door.who [ ]it be?
---someone is knocking at the door.Who _____ it be?
Someone is knocking at the door.Who it be?— It be Tom.He is
Who is knocking at the door?I think ___ is the postman?A、it
Someone is knocking at the door.___ it be Venis?—No,it ___ b
-Who __it be that is knocking at the door -It__b
Someone is knocking at the door,but who can____ be?
--Listen! Someone is knocking at the door. Who _____it be?
---Listen! Someone is knocking at the door. Who _____it be?
Someone is knocking at the door.Who can it be?的回答.A.Nothing
6.There is someone knocking at the door,who _____ it be?
Who______ it be that is knocking at the door?