I burnt the letter _____ I had read it.
Fill in the blank with appropriate conjunction -

After: 
- After এর অর্থ হলো 'পরে'। 
- After এর পরে past perfect tense এবং আগে past indefinite tense ব্যবহৃত হয়। 
- Past indefinite tense + after + past perfect tense. 

• তাই complete sentence টি হবে: I burnt the letter after I had read it. 

Source: A Passage to the English Language by S. M. Zakir Hussain.