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Among scientists, the discovery of the double helix structure of DNA and the genetic code it incorporates is widely regarded to be one of the most significant scientific discovery of the twentieth…

Question and options

Among scientists, the discovery of the double helix structure of DNA and the genetic code it incorporates is widely regarded to be one of the most significant scientific discovery of the twentieth century.
  1. regarded for being one of the most significant scientific discoveries
  2. regarded as one of the most significant scientific discoveries
  3. regarded like one of the most significant scientific discovery
  4. regarded being one of the most significant scientific discoveries

Answer and explanation

Correct answer: B - regarded as one of the most significant scientific discoveries
The correct idiom is 'regarded as', and 'one of the most ...' takes the plural 'discoveries'.

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