What were you doing when someone knocked at the door?当有人在敲门时
What were you doing when someone knocked at the door?当有人在敲门时
what were you doing when someone knocked at the door?分析一下句型
What where you doing when someone Knocked at the door?I ____
When did someone knock at the door?当有人敲门时?
I () my brother when someone knocked at the door
I ( ) go out when someone knocked at the door.
Hardly _____ to sleep when someone knocked at the door.
时态变化I was reading when someone knocked at the door.在该句前加I sa
There’s someone at the door.为什么可以翻译成“有人在敲门”?
Someone knocked at the door () I ()()lunch.(当我吃午饭时)
What___you___when someone knocked at the door?
We were having lunch,when someone knocked the door (问号处填介词或副