Select all formally correct sentences with a fronted negative or restrictive adverbial.
Seldom do the ferries run after midnight.✓Richtige Antwort
Rarely the laboratory is this quiet.
Never has our branch missed a deadline.✓Richtige Antwort
Under no circumstances should the seal be removed.✓Richtige Antwort
Erklärung
The correct sentences place an auxiliary or modal before the subject after the fronted expression. The rejected sentence leaves the subject before its auxiliary, so the required inversion is absent.