Someone knocked at the door () I ()()lunch.(当我吃午饭时)
Someone knocked at the door () I ()()lunch.(当我吃午饭时)
I () my brother when someone knocked at the door
I ( ) go out when someone knocked at the door.
What were you doing when someone knocked at the door?当有人在敲门时
What___you___when someone knocked at the door?
1.Someone knocked at the door.I went over to answer the door
时态变化I was reading when someone knocked at the door.在该句前加I sa
When I started ____ the big cake,someone knocked at the door
I heard someone ____(knocking/knocked)at the door just now.
When someone knocked at the door,I was having dinner.可不可以把wh
I (was about to ) go out when someone knocked at the door 为什
连成句子I,having,when,was,someone,breakfast,at,knocked,door,the