Elves are said to dwell ___________ enchanted forests, far away from human civilization.

• Dwell in:
Meaning: বাস করা।

• Appropriate preposition এর ক্ষেত্রে,
- 'বাস করা' অর্থ বোঝাতে Dwell এর পরে in বসে।
- তাই শূন্যস্থানে in বসালে বাক্যটি পরিপূর্ণ হয়।

Complete sentence: Elves are said to dwell in enchanted forests, far away from human civilization.

More Examples:
1. Fairies are rumoured to dwell in the hidden groves, unseen by mortal eyes.
2. Mountain goats prefer to dwell in rocky terrain, where they can easily navigate steep cliffs.

Source: Advanced Learner's by Chowdhury & Hossain.