Solution
Correct Answer: Option C
Past Perfect Continuous Tense-এর structure হলো: Subject + had been + verb-এর সাথে ing + extension.
- প্রদত্ত 'I eat' বাক্যটির Subject হলো 'I' এবং Verb হলো 'eat'।
- structure অনুযায়ী Past perfect continuous form হবে: Sub (I) + had been + verb-ing (eating)।
- সুতরাং, সঠিক উত্তর: I had been eating.