Question

difference in direct speech and indirect speech

Answer 1

in direct speech the subject comes first
Example - He teaches me history. ( here "he" is the subject )
in indirect speech the object comes first
Example - History is taught to me by him. ( here " history " is the object)

Answer 2

Direct speech describes when something is being repeated exactly as it was – usually in between a pair of inverted commas. ... Indirect speech will still share the same information – but instead of expressing someone's comments or speech by directly repeating them, it involves reporting or describing what was said.