i __(read) a history book when someone __(knock) at the door

i __(read) a history book when someone __(knock) at the door I _____(read)a history book when someone __(konck)at the doo WHEN I WAS READING I HEARD SOMEONE -----(KNOCK)AT THE DOOR 英语 有人挡在汽车门前时,我很生气 I __ __ when someone __ in the bus door Listen:Someone ______(knock) at the door. When did someone knock at the door?当有人敲门时? She was cocking when she heard someone ( )knock at the door Did you hear someone[ ] 【knock】 at the door when you[ ]【 wat He was just __ __ when there was a loud __ __ the door. I heard someone _____(knock /knocking) at the door just now There was a knock at the door.It was the second time someone I () my brother when someone knocked at the door