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.

If you take my ________, you'll make a lot of money in the trade.

. The report about the ______ surprised all the ______.

Syria's foreign ministry yesterday accused Israel ______ working with "terrorist groups" after it carried out two strikes against Syrian targets.

The school advisers help you talk through your problem but they don’t give you any direct .