Hardly _____ to sleep when someone knocked at the door.

Hardly _____ to sleep when someone knocked at the door. we___(listen) to the radio when someone knocked at the door I () my brother when someone knocked at the door I ( ) go out when someone knocked at the door. I (was about to ) go out when someone knocked at the door 为什 What___you___when someone knocked at the door? 1.Someone knocked at the door.I went over to answer the door When I started ____ the big cake,someone knocked at the door 英语Someone knocked at the door when l (was watching) TV What were you doing when someone knocked at the door?当有人在敲门时 When someone knocked at the door,I was having dinner.可不可以把wh 时态变化I was reading when someone knocked at the door.在该句前加I sa