To live in ______ countryside for some time is really ______ helpful experience to children growing up in the cities.
We have strong __________ for believing that the mine accident in Heilongjiang was due to the poor management.
—Hey, dear! Guess what? I’ve got a pay rise! —This ________ a celebration! Let’s go to sing karaoke tonight.
I’m terribly sorry to turn you down this time, but I promise I will ________ to you next time.
The moment we heard the news of the earthquake, we began to ________ the work to rescue those who were trapped in the building.
.________ twice, the postman refused to deliver our letters unless we chained our dog.