Direct & indirect speech

I'm trying to learn Direct speech and Indirect speech

Direct speech to Indirect speech

• Direct speech : "I knew this place well last year," he said to me. (number 5) 

• Indirect speech : He said to me that he had known this place well last year.

 Indirect speech to Direct speech

• Indirect speech : She said to James that she had had lunch as 12 o'clock. (number 1)
•  
• Direct speech : "I have had lunch as 12 o'clock," She said to James.

 conjunction

• She wants to buy a Chevrolet, or She wants to buy a Toyota (number 6)
  

become

• She wants to buy either a Chevrolet, or a Toyota.