There______someone knocking at the door.Let's go to see.

There______someone knocking at the door.Let's go to see. someone is knocking at the door （）i go and see who it is A s There is somebody knocking at the door .Go to see( ) it is. he stopped to see who was knocking at the door 是seeing还是to s --Who's knocking at the door? —Someone is knocking at the door. —Yes, I’ll go and see who someone is knocking at the door .（）i go and see who it is A there is ( ）knocking at the door.GO and see who it is A nobo 一道英语填词题There is someone knocking at the door.Please go and s 一道七年级英语题I saw someone knocking at the door.为什么用knocking,see there's someone knocking at the door.等于什么 "Who's knocking at the door?" "______ is Kate."