what _ (happen)outside?
let's go and see what ____(happen)outside
What happen _ Li Lei yesterday?
I didn t know what was happening outside这句话中为什么happen加ing?
tell me what ( )outside the station.中应添happen的什么形式
What happen
no one knows what will happen()
What happen还是What is happen?
what's happen还是what happen?
Dear What is happen?
what will happen next?
what would happen if .
what happen to sb.