Direct speech : - Direct speech is used to report or rather repeat the words spoken by the speaker or writer in the way it is told by the speaker .

Indirect speech : - Indirect speech is the way in which you convey what someone said to another person, not necessarily using the exact words of the speaker.

Changing Indirect Speech into Direct Speech:  When we write a sentence in indirect Speech we  use the coordinating conjunctions to join the two parts.  In direct speech while converting the sentence into direct speech we separate the introducing verb by a comma and a quoted speech. The quoted speech always begins with a capital letter and is placed within inverted commas.

Change in tenses: We often have to change the tense of the verb in the spoken words. A verb in the simple past usually changes to the simple present in direct speech:

• Aly said all books were in that drawer. ( Indirect Speech )
• All books are in this drawer"; said Aly. ( Direct Speech )

In the question : -

1. He said that she had completed her work.

The Direct speech of the above sentence is :

He said, “she has completed her work”.

While converting into direct speech , firstly , place reporter 's speech into inverted commas , then convert past perfect into present perfect tense means had change into has and then place object of the sentence which is work here .

2. He said that he was happy.

The Direct speech of the above sentence is :

He said , “I am happy”.

While converting into direct speech , firstly , place reporter 's speech into inverted commas , then convert simple past tense into simple present tense means was change into is and then place object of the sentence which is happy here .

Thus , the Correct Option is C , which is  1. He said, “she has completed her work”. 2. He said , “I am happy”.

Direct speech : - Direct speech is used to report or rather repeat the words spoken by the speaker or writer in the way it is told by the speaker .

Indirect speech : - Indirect speech is the way in which you convey what someone said to another person, not necessarily using the exact words of the speaker.

Changing Indirect Speech into Direct Speech:  When we write a sentence in indirect Speech we  use the coordinating conjunctions to join the two parts.  In direct speech while converting the sentence into direct speech we separate the introducing verb by a comma and a quoted speech. The quoted speech always begins with a capital letter and is placed within inverted commas.

Change in tenses: We often have to change the tense of the verb in the spoken words. A verb in the simple past usually changes to the simple present in direct speech:

• Aly said all books were in that drawer. ( Indirect Speech )
• All books are in this drawer"; said Aly. ( Direct Speech )

In the question : -

She told me that she had been to San Francisco.

The Direct speech of the above sentence is :

She told me , “I have been to San Francisco” .

While converting into direct speech , firstly , place reporter 's speech into inverted commas , then convert Present Perfect Continuous to Past Perfect Continuous means have been change into had been and then place object of the sentence which is San Francisco here .

Thus , the Correct Option is D , which is She told me , “I have been to San Francisco” .

Direct speech : - Direct speech is used to report or rather repeat the words spoken by the speaker or writer in the way it is told by the speaker .

Indirect speech : - Indirect speech is the way in which you convey what someone said to another person, not necessarily using the exact words of the speaker.

Changing Indirect Speech into Direct Speech:  When we write a sentence in indirect Speech we  use the coordinating conjunctions to join the two parts.  In direct speech while converting the sentence into direct speech we separate the introducing verb by a comma and a quoted speech. The quoted speech always begins with a capital letter and is placed within inverted commas.

Change in tenses: We often have to change the tense of the verb in the spoken words. A verb in the simple past usually changes to the simple present in direct speech:

• Aly said all books were in that drawer. ( Indirect Speech )
• All books are in this drawer"; said Aly. ( Direct Speech )

In the question : -

They told me that they had been playing basketball.

The Direct speech of the above sentence is :

They told me ," We were playing basketball” .

While converting into direct speech , firstly , place reporter 's speech into inverted commas , then convert past perfect continuous into past continuous tense means were change into had been and then place object of the sentence which is football here .

Thus , the Correct Option is B , which is They told me ," We were playing basketball” .