Shanghai is the first city in the world ____a high-speed maglev train, from the city to Pudong Airport.
Anything worth ______ is worthy of ______.
---Will the Smiths go abroad this summer? ---No, they finally decided _______.
The patient was warned _______oily food after the operation.
Charles Babbage is generally considered _______the first computer.
The matter had better _______ as it is.