Which sentence demonstrates proper inversion structure?

A. Never before such attention has been paid to data protection.

B. Never before has such attention been paid to data protection.

C. Never before such attention being paid to data protection.

D. Never before such attention paid to data protection.

答案解析

Core concept: Negative adverbial fronting. Option B correctly inverts 'has' before the subject after 'Never before'. Options A/C/D fail to invert the auxiliary verb, violating the grammatical rule that requires subject-verb inversion when sentence-beginning negative adverbs like 'never' introduce the clause.

正确答案：B

Which sentence demonstrates proper inversion structure?

答案解析

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