The girl stopped ___________ when her mum came in.A. cryingB. to cryC. cry

When the order _____ is received from the bridge, the main air stop valve in the starting air line should be shut.

The bus had gone when I ____ at the bus stop.A、have arrivedB、arrivedC、had arrivedD、am a

When she was driving home, she was stopped by the policeman and was______of speeding.A．war

When the girl heard the news, she could do nothing but ______ back home. A：going B：went

Scarcely had the car stopped ________ the cell phone began to ring. A：than B：when C：a

The girl _____________ the case to the staff when her parents arrived.