I was sleeping when the UFO arrived
I was sleeping when the UFO arrived
.I was sleeping last night when the UFO l_______.
when the UFO arrived, I was in the library.
he were sleeping when the UFO arrived.为什么用were
I was shapping when the UFO arrived(对I was shapping 提问)
-Where were you when the UFO arrived?-I was in the( )
-where were you when the UFO arrived?-I was _______ the libr
What were you doing when the UFO arrived?和I was walking down
I was still sleeping when the fire ,
He was sleeping late when it arrived
When the UFO(landed/was landing),the dog (slept/was sleeping
直接引语变间接引语She said:"I was shopping when the UFO arrived."怎么变间