Change the narration: He asked, "Have you seen my keys?"

• The correct sentence is: He asked if I had seen his keys. 
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• Interrogative Sentence যুক্ত Direct Speech কে Indirect Speech করার নিয়ম:  
- Subject + asked + object + if/whether + reported speech এর subject + Tense অনুসারে verb + extension.

সুতরাং, সঠিক indirect speech টি- He asked if I had seen his keys.