He was about to go out for a walk _____ his teacher came to visit him.
My mother often asks me _____early .
Soon Wu Dong ____ up with Li Lei, then they were neck and neck.
The car ____and stopped at the red traffic light.
Tom ____ the CD player for two weeks.
---Do you know ______? ---Sorry, but if he _____ back, I ____ you know as soon as possible.