—Who’s knocking at the door?

--Who's knocking at the door? "Who's knocking at the door?" "______ is Kate." -Who's knocking at the door?- ____ me Tom. 1.— There’s someone knocking at the door.Who could _____ be? 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 he stopped to see who was knocking at the door 是seeing还是to s 单句改错 who is the men knocking at the door Someone is knocking at the door,but who can____ be? someone is knocking at the door.who [ ]it be?