Some retired people have nothing to do. They often get together and ____for hours talking about their past experiences.
The two friends ______on the Internet for three hours, and they would go on till the next morning.
He was in hospital for 6 months. He felt as if he was ______ from the outside world.
______ from the space, the Great Wall looks like a dragon.
I could just see a car in the distance, but I couldn’t _____ what color it was.
What did you ____ me ____? I’m a teacher, not a doctor.