"Who's knocking at the door?" "______ is Kate."

"Who's knocking at the door?" "______ is Kate." --Who's knocking at the door? who is knocking at the door? 1.----Who is knocking at the door Listen!Who is knocking at the door? someone is knocking at the door （）i go and see who it is A s 单句改错 who is the men knocking at the door -Who's knocking at the door?- ____ me Tom. Someone is knocking at the door,but who can____ be? someone is knocking at the door.who [ ]it be? --Listen! Someone is knocking at the door. Who _____it be? ---Listen! Someone is knocking at the door. Who _____it be?