Maruf has always excelled ________ foreign languages.

• শূন্যস্থানে সঠিক উত্তর হবে - in.
- Complete sentence: Maruf has always excelled in foreign languages.

• Excel(in/at)
English meaning: To do something very well, or much better than most people excel at/in.
Bangla meaning: অন্যদের চেয়ে ভালো করা, ছাড়িয়ে যাওয়া।

Source: Longman Dictionary and Bangla Academy Dictionary.