What is the superlative degree of 'Costly!?

Write a letter to your younger brother expressing concern regarding the lack of fire safety measures in building and restaurants of Dhaka City.

Write the meaning of the following idioms and phrases in Bangla:

By dint of

Use the right form of verb in the following sentences: (any five)

Without (King) I will not tell her.

What is the synonym of the word “knave”?

Fill in the gaps with right form of the verb:

It often ....... heavily in Bangladesh.