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Medium 1 Mark

English Sentence Correction & Common Errors

Choose the correct sentence.

A The teacher told the class that water boils at 100 degrees Celsius.

B The teacher told the class that water boiled at 100 degrees Celsius.

C The teacher told the class that water had boiled at 100 degrees Celsius.

D The teacher told the class that water was boiling at 100 degrees Celsius.

Scientific facts and general truths stay in the present tense even when reported inside past-tense reported speech.

Reference: Skoolyst English Grammar Guide , Page 3

General truths and scientific facts don't follow the normal backshift rule in reported speech.