This boy is faster than all other boys in the class. (Make it positive)

সঠিক উত্তর ঘ) No other boys in the class is so fast as this boy.

• Than any other/all other যুক্ত Comparative Degree-কে Positive Degree-তে রূপান্তরের নিয়ম-
(1) প্রথমে No other বসে +
(ii) any other বা all other এর পরের অংশ বসে+
(iii) verb বসে+ (iv) so বসে +
(v) Comparative Degree এর Positive form বসে +(vi) as বসে+
(vii) প্রদত্ত Sentence এর subject বসে।

Structure: No other + any other/all other এর পরের অংশ+ verb + so + comparative degree এর positive form+as+প্রদত্ত sentence এর Subject.

Example :
• Comp: Runi is greater than any other boy in the orphanage.
Positive: No other boy in the orphanage is so great as Runi.
• Comp: Dhaka is larger than all other cities in Bangladesh
Positive: No other city in Bangladesh is so large as Dhaka.

Source: Advanced Learners by Chowdhury and Hossain.