he stopped to see who was knocking at the door 是seeing还是to s

he stopped to see who was knocking at the door 是seeing还是to s There______someone knocking at the door.Let's go to see. --Who's knocking at the door? who was knocking at the door just now?还是who knocked at the d someone is knocking at the door （）i go and see who it is A s "Who's knocking at the door?" "______ is Kate." -Who's knocking at the door?- ____ me Tom. There is somebody knocking at the door .Go to see( ) it is. who is knocking at the door? 1.----Who is knocking at the door Listen!Who is knocking at the door? who is knocking at the door?it'me 还是I am 还是 it's I要详细一点 说明它们