____ a lot of work to do, all the workers are not allowed to take their holidays.
In the past month, cruel snowstorms hit some European countries and America ,great transportation problems in these countries.
______he has made up his mind, no one can make him change it.
—I’m going to the United States. —How long ______ you ______ in the United States?
Tom always prefers _________on foot rather than _______ a bike.
—You went to the US last month , didn’t you? —Yes. That was the first time that I________ there.