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.

Indirect Speech To Direct Speech-Changes in words and expression of Time and Place:

You sometimes have to change other words or phrases, such as those referring to time or place:

• Parul said she had filed the complaints two days before. (Indirect Speech)
• Parul said, "I filed the complaints two days ago." (Direct speech)

In the question : -

1. He told us that he had been on holiday the previous week.

The direct speech of the above sentence is :

He told us "I was on holiday last week" .

While converting into direct speech , firstly place reporter ' speech into inverted commas , then he is converted into I according to first person , then change past perfect into simple past means had been is converted into was , then the objective part on holiday and then the last week is converted into the previous week .

2. She said she was getting a new car that week.

The direct speech of the above sentence is :

She said , "I am getting a new car this week" .

While converting into direct speech , firstly place reporter ' speech into inverted commas , then she is converted into I according to first person , then change past continuous  into present continuous means was getting is converted into am getting , then the objective part a new car and then this week is converted into that week .

Thus , the Correct Option is C , which is 1.  He told us "I was on holiday last week" . 2. She said , "I am getting a new car this week" .

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.

Indirect Speech To Direct Speech-Changes in words and expression of Time and Place:

You sometimes have to change other words or phrases, such as those referring to time or place:

• Parul said she had filed the complaints two days before. (Indirect Speech)
• Parul said, "I filed the complaints two days ago." (Direct speech)

In the question : -

My mother said those snakes were for our Guest.

The direct speech of the above sentence is :

My mother said, "These snakes are for our Guest" . 

While converting into direct speech , firstly place reporter ' speech into inverted into commas , then change those into these and use are as helping verb , then the objective part our guest .

Thus , the Correct Option is B , which is My mother said, "These snakes are for our Guest" .

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.

Indirect Speech To Direct Speech-Changes in words and expression of Time and Place:

You sometimes have to change other words or phrases, such as those referring to time or place:

• Parul said she had filed the complaints two days before. (Indirect Speech)
• Parul said, "I filed the complaints two days ago." (Direct speech)

In the question : -

She said that she had seen him that day.

The direct speech of the above sentence is :

She said , "I saw him today" .

While converting into direct speech , firstly place reporter ' speech into inverted into commas , then change she pronoun into I according to the first person , then that day into today , then change past prefect into simple past means had seen is converted into saw , then the objective part him .

Thus , the Correct Option is D , which is She said , "I saw him today" .