The train leaves___6:00 pm, so I have to be at the station___5:40 pm at the latest?
She had to leave school_______ her family couldn’t afford her education.
The old man has retired from the factory. He _____ there for 30 years.
— I don’t mind telling you what I know. — You _______. I can manage it myself.
The boys enjoy playing basketball __________ many of the girls relax by playing ping-pong.
The teacher asked the students to do the experiment __________ small groups.