Identify the correct negative inversion with 'Rarely':
'Rarely ______ such rapid consensus among competing pharmaceutical manufacturers.'
Answer and explanation
Correct answer: D. has one seen
- Step 1: Initial restrictive frequency adverbs ('rarely', 'seldom', 'scarcely') trigger subject-auxiliary inversion.
- Step 2: The present perfect inverts as 'has (auxiliary) + one (subject) + seen (participle)': 'has one seen'.
Answer
has one seen.
Why not the others: 'one has seen' lacks subject-auxiliary inversion; 'one did see' lacks inversion; 'saw one' inverts the main lexical verb without auxiliary.
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