It’s a major         for Obama and his national security team, to fulfill the goal once voiced by Obama’s predecessor, George W. Bush, to bring to justice the mastermind （设计者）of the 9-11 attacks.

He created a lot of vivid characters in his best-selling novels, thus winning the ______ of book-lovers all over the world. 

— They have discussed the problem for hours.  — Have they come to any_____?

My neighbor is very kind. I’ll never forget the ______ she’s done for me.

 We are working on the _assumption__________that everyone _________ will turn up.