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mastery UK /ˈɒpəɹətɪv/ US /ˈɑpəɹətɪv/adjnoun
card 1 of 8 · fill in the blank
The new security system will become _____ operative once all tests are passed.
card 1 of 8 · fill in the blank
The new security system will become _____ operative once all tests are passed.