Scientists rarely observe this phenomenon., Rarely do scientists observe this phenomenon., We should never ignore ethical concerns., Under no circumstances should we ignore ethical concerns., Researchers only understood the problem after further testing., Only after further testing did researchers understand the problem., The theory is not completely accepted by scientists., By no means is the theory completely accepted by scientists., Universities should not publish personal student data under any circumstances., Under no circumstances should universities publish personal student data., Researchers seldom obtain results this consistent., Seldom do researchers obtain results this consistent., The participants realized the purpose of the study only after the interview ended., Only after the interview ended did the participants realize the purpose of the study., The professor had never encountered such convincing evidence before., Never had the professor encountered such convincing evidence before., Students should not submit incomplete references on any account., On no account should students submit incomplete references., The committee understood the seriousness of the issue only when the final report was released., Only when the final report was released did the committee understand the seriousness of the issue..

B2 LESSON 15

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