Common Error Detection
Find out whether there is any grammatical error in below sentence. What does Professor Dhavan / spend so many hours / in the laboratory?

No error
in the laboratory?
What does Professor Dhavan
spend so many hours

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Common Error Detection
Find out whether there is any grammatical error in below sentence.Since it was his first election campaign, the candidate was confused; / none could clearly understand / either the principles he stood for or the benefits he promised.

Since it was his first election campaign, the candidate was confused;
No error
either the principles he stood for or the benefits he promised
none could clearly understand

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