—Hello, can I speak to Mr. Smith?—I’m sorry, but it is 3 weeks _____ he worked here.
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.