It is announced that________$20,000 reward will be offered for ________ return of the stolen sculpture.
After months of voyage, Columbus arrived in _____ later proved a new continent.
—Do you think our team will win the game?—I don’t know. But this is the last chance. We _____ them to.
____ our natural resources is very necessary.
_____ is known to us all is that the old scientist, for _____ life was hard in the past, still works very hard in his eighties.
—_____?—Fine, I’ve got used to the life there, and I’ve made some friends.