The roads of Rajshahi are wider than ________ Dhaka.

• Correct Sentence: The roads of Rajshahi are wider than those of Dhaka.

• দুটি Noun এর মধ্যে তুলনা করার সময় পূর্বের Noun এর পুনরাবৃত্তি পরিহার করতে Uncountable Noun এর পরিবর্তে that of এবং Plural Countable Noun এর পরিবর্তে those of ব্যবহৃত হয়।
- অন্যভাবে বলা যায়, কোনো Comparative sentence এর প্রথম অংশ যদি The + Noun + of + Noun হয়, তবে verb এর পরের অংশ হবে than + that/ those of হবে।

• Structure:
01. The + Uncountable Noun + of + noun + is + comparative adjective + than + that of + ext.

- Example sentence:
- The climate of Nepal is colder than that of Bangladesh.
- The beauty of this painting is greater than that of the one in the gallery.

02. The + Countable Noun + of + noun + is + comparative adjective + than + those of + ext.

- Example sentence:
- The students of this school are taller than those of the neighboring school.
- The books of this library are more interesting than those of the old library.

Source: Advanced Learner's Communicative English Grammar & Composition By Chowdhury & Hossain.