Change the following sentence from Direct Speech to Indirect Speech. The…

Correct indirect sentence: The teacher asked the erring students why they did not do their homework at home.

Key points:

• Remove the question inversion. Change from "why did they not" to "why they did not" (statement order).

• Do not use the word "that" before the question word "why."

• Backshift the tense when reporting: the present "don't do" becomes past "did not do."

• Keep the original meaning: it is a question asking for a reason, not a command.

Step-by-step conversion:

1. Remove the quotation marks and the question mark from the direct speech.

2. Change the verb order from the question form to statement order: "did they" → "they did."

3. Backshift the tense: "don't do" → "did not do."

4. Do not insert "that" before "why."

Putting these changes together gives the correct reported sentence shown above.