It is sad that when he is alone, he always drinks a(n) _______ amount of alcohol to get himself drunk.
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To our delight, this new smoke alarm system can effectively _______ very weak signals.
We have sent our union _______________ to look into the case and see who is responsible.
The project is an important step toward a national health service, and the authorities are trying hard to __________ the exercise facilities.
I ___________a letter of complaint to the manager of the store as soon as I found they had sold me a pair of mismatched shoes.