Select the correct option:
Not until the data was independently verified _______ accepted by the journal.
Show answer & explanation
Correct answer: B
Explanation
The correct answer is option 2 i.e. was it.
Context: “Not until” requires subject–verb inversion in the main clause. The sentence requires inverted structure: auxiliary + subject.
Analysis of the given options
-
it was – no inversion
-
was it – correct inversion
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did it – wrong auxiliary
-
had it – incorrect tense
Correct phrase: was it
Reason: Negative adverbial fronting triggers inversion.
Final sentence: Not until the data was independently verified was it accepted by the journal.
Hence, the chosen option is correct.