Choose the most appropriate form of Indirect speech for the given sentence.
The teacher said to Hari, "Why did you not do your homework yesterday" ?

Question

Choose the most appropriate form of Indirect speech for the given sentence. 
The teacher said to Hari, "Why did you not do your homework yesterday" ?

Accepted Answer

Option 2 is the correct choice for converting the given direct speech into indirect speech. Let's break down the reasons why Option 2 is appropriate and why the other options are incorrect.

### Explanation for Option 2:
- **Structure of Indirect Speech**: In indirect speech, the sentence structure changes from a direct question to a statement. The question form "Why did you not do" is transformed into the statement form "why he had not done."
- **Tense Change**: The direct speech is in the past simple tense ("did"), which changes to the past perfect tense ("had done") in indirect speech. This is a standard rule for converting past simple to past perfect when reporting speech.
- **Pronoun Change**: The pronoun "you" in direct speech changes to "he" to match the subject "Hari" in indirect speech.
- **Time Expression**: The word "yesterday" in direct speech is changed to "the previous day" in indirect speech to reflect the change in perspective of time.

### Explanation for Why Other Options are Incorrect:

- **Option 1**: "The teacher asked Hari why had he not done his homework the previous day?"
  - **Incorrect Word Order**: The structure "why had he not done" is incorrect for indirect speech. In indirect speech, the question form should be converted into a statement form, which means the correct order is "why he had not done."

- **Option 3**: "The teacher said to Hari why had he not done their homework the previous day?"
  - **Incorrect Reporting Verb**: The phrase "said to" is not typically used for questions in indirect speech. The correct reporting verb should be "asked."
  - **Incorrect Word Order**: Similar to Option 1, the word order "why had he not done" is incorrect for indirect speech.
  - **Pronoun Error**: The use of "their" is incorrect as it does not match the subject "Hari." The correct pronoun should be "his."

- **Option 4**: "The teacher said Hari that he had not done his homework the previous day."
  - **Incorrect Reporting Verb**: The verb "said" is not appropriate for reporting questions. The correct verb should be "asked."
  - **Missing Question Element**: The question element "why" is missing, which is essential to convey the original question's intent.

In summary, Option 2 correctly follows the rules of converting direct speech to indirect speech by using the appropriate reporting verb, changing the tense, adjusting pronouns, and modifying time expressions. The other options fail to adhere to these rules, making them incorrect.