_______________will not continue if an ongoing operation is changed or deletedA、

Either he or I ______to the airport.

系统中雷达状态包括Unknown、Operational（or ON）、Failed（or OFF）、Detached。

The personal computer or______is the smallest general-purpose computer．

Project ______is an uncertain event or condition that，if it occurs，has a positive or a negative effect on at least one project objective，such as time，cost，scope，or quality．

 ______ twice a year, whether it is a car or a bus or a truck, is the rule that every driver must obey in this city.

It will be a relief over the death of a friend or a relative if the friend or relative dies from ______.

Hurry up, or you ______ catch the train.

Every deliberate act of wrongdoing by the master or any of the crew against the ship or cargo，without the authorization or privity of the Shipowner or his agent，is（）.

A salvor may be（）the whole or part of the payment due under Salvage Convention to the extent that the salvage operations have become necessary or more difficult because of fault or neglect on his part or if the salvor has been guilty of fraud or other dishonest conduct.

Doctors are often caught in a _____ because they have to decide whether they should tell their patients the truth or not.

The ball _____ two or three times before rolling down the slope.