The given sentence is in Direct Speech because it quotes actual words. Therefore, it must be changed into Indirect Speech.

We notice that the reporting verb is in the Past tense (‘said’). Hence, a change will be made in the tense of the reported speech.

Also, the first person of the reported speech is changed according to the subject of reporting speech.

The present continuous tense (am arranging) is changed to past continuous tense (was arranging).

In the given question, the first person pronoun ‘I’ is changed to third person pronoun ‘he'. The pronoun 'my' is changed to 'his'.

Therefore, the sentence in Indirect Speech will be option C i.e. Ravish said that he was arranging a party to celebrate the successful completion of his studies.

The rules for converting indirect to direct speech are as follows:

1. Use the reporting verb, "said".

2. Remove the conjunctions "that" and insert quotation marks.

3. Put a comma before the statement.

4. Change the past tense (didn't maintain) into present tense (don't maintain).

5. Change present conditional (would have) to simple future tense (will have).

6. Change the third person pronoun ‘they’ into second person pronoun ‘you’.

7. Change the third person pronoun ‘she’ into first person pronoun ‘I’.

Therefore, the sentence in direct Speech will be option C i.e. He said, The teacher said to the students, "If you don't maintain discipline, I'm afraid I'll have to report the matter to the principal."

The rules for converting indirect to direct speech are as follows:

1. Use the reporting verb, "said".

2. Remove the conjunctions "that” and insert quotation marks.

3. Change the present conditional (would) into simple future tense (will).

4. Change the past tense (needed) into present tense (need).

5. Change the past continuous tense (was not keeping) into present continuous tense (is not keeping).

6. Change the third person pronoun ‘she’ into first person pronoun ‘I’.

Therefore, the sentence in direct Speech will be option C i.e. "I'll go to Jaipur by the night train," mother said, "as I need to look after the grandmother who is not keeping well."

The given sentence is in Direct Speech because it quotes actual words. Therefore, it must be changed into Indirect Speech.

We notice that the reporting verb is in the Past tense (‘told’). Hence, a change will be made in the tense of the reported speech.

Also, the first person of the reported speech is changed according to the subject of reporting speech.

The present tense (can) is changed to past tense (could).

In the given question, the first-person pronoun ‘I’ is changed to third person pronoun 'she'.

Therefore, the sentence in Indirect Speech will be option D i.e. Shruti told me that she could not cope with the pressure of balancing office work and home.

To convert interrogative sentences into direct speech, follow the following rules along with the above-mentioned rules:

• The reporting verb ‘asked is changed to ‘said’.

• Since the reported speech is having interrogative word ‘if’ and the sentence is in the past tense, use 'do' as the interrogative word in the direct speech.

• The past tense 'had' is converted into present tense ‘have’.

• If a first person pronoun (I) is the object of the main sentence, they change into second person pronoun (you) in direct speech.

• A question mark is placed at the end of the sentence instead of a mark of interrogation.

Therefore, the sentence in Indirect Speech will be option C i.e. The interviewer said, "Do you have any experience of working with teenagers?"

To convert interrogative sentences into direct speech, follow the following rules along with the above-mentioned rules:

• The reporting verb ‘asked’ is changed to ‘said’.

• Since the reported speech is having interrogative word ‘how’, we use it as it is.

• The verb ‘had paid’ is converted into ‘did pay’.

• The first person pronoun 'I' is changed to second person pronoun 'you'.

• A question mark is placed at the end of the sentence instead of a mark of interrogation.

Therefore, the sentence in Indirect Speech will be option B i.e. She said to me, "How much did you pay for the mangoes?"

Hence, option B is the correct answer.

The given sentence is in Direct Speech because it quotes actual words. Therefore, it must be changed into Indirect Speech.

We notice that the reporting verb is in the Past tense (‘said’). Hence, a change will be made in the tense of the reported speech. Since the manager is notifying the receptionist, use 'informed' in the reported speech.  

Also, the first person of the reported speech is changed according to the subject of reporting speech. In the given question, the pronoun ‘I’ is changed to ‘she’.

The present continuous tense (am going) is changed to past continuous tense (was going).

Therefore, the sentence in Indirect Speech will be option B i.e. The manager informed the receptionist that she was going to attend an urgent meeting at the head office.

The rules for converting indirect to direct speech are as follows:

1. Use the reporting verb, "said".

2. Remove the conjunction "that” and insert quotation marks.

3. Put a comma before the statement.

4. Since it is an indirect speech of an imperative sentence, start it with the first form of the verb i.e. 'don't'.

Therefore, the sentence in direct Speech will be option C i.e. I said to my brother, "Don't mess up the things in the cupboard".

The given sentence is in Direct Speech because it quotes actual words. Therefore, it must be changed into Indirect Speech.

To convert interrogative sentences into indirect speech, follow the following rules along with the above-mentioned rules:

• The reporting verb ‘said’ is changed to ‘asked’.

• If the reporting speech has the auxiliary verb (have) at its beginning, then 'if' is used in place of 'that'.

• The past tense of 'put' is 'put' only. 
Also, 'have' will be changed to 'had'. 

• A full stop is placed at the end of the sentence instead of a mark of interrogation.

Therefore, the sentence in Indirect Speech will be option D i.e. The mother asked the maid if the children had put away their toys.

The rules for converting indirect to direct speech are as follows:

1. Use the reporting verb, "said".
2. Remove the conjunctions "that" and insert quotation marks.
3. Put a comma before the statement.
4. Change the present conditional tense (would) into future tense (will).
5. Since the second part of the sentence has 'asked', convert it into a question. Also, change 'if' into 'do'.
6. Change the third person pronoun ‘he’ into second person pronoun ‘you’.
7. Convert the verb 'had' into 'have'.

Also, note that the third person pronoun 'he' is not changed to second person pronoun in option D. Hence, it is incorrect.

Therefore, the sentence in direct Speech will be option B i.e. The boss said to Satish, "The matter will soon be resolved. Do you have anything more to say?"