Considering his health, I advise him to ______ an hour or two each day to work out.
Sometimes opium(鸦片)can be used to __________ some diseases. But some people are __________ to it. TTien it becomes a drug.
—Give up our tea break?—__________. We have continued working for more than 12 hours!
—__________ that he gave up smoking and drinking?—Oh, his girlfriend helped him.
What a pity it was that the film star died from an accident __________ his film unfinished.
__________ the train arrived, some people were waiting inside the station __________ others were heading for the platform.