Lack food supplies and wanted by the police, the terrorists made a ______ attempt to hijack(劫持) a plane to Iran.

—I have a good piece of news for you. Our team has won first place.— _______! I'll let everyone know it.

Ms Black is considered a ________lady by her neighbors for she often helps the poor old man next door.

 After the long journey, the three of them went back home ,__________.

 In today’s fast changing and competitive world, to be able to learn faster and more effectively is not merely desirable; it is ________.