He wants to cut down his smoking because he has been out of________ for a long time.
According to the law, all foreigners have to________with the local police within two weeks of arrival.
Old-fashioned phones matter when wireless networks ________ in disasters.
While intelligent people can often________the complex, a fool is more likely to complicate the simple.
As the train ran faster and faster,the lights of the city were soon ________.
At the edge of the grass,there's a sign saying“________ the grass”.