You recently stayed for a few days at your friend Mira's home. Mira lives at 45 Park View, Gulshan, Dhaka. Write different pieces related to thanking her for her hospitality and preparing the envelope for your thank-you letter.

a. Write a formal/semiformal thank-you letter to Mira including sender and receiver addresses, date, salutation, body (two short paragraphs) and closing.

b. Write the correctly formatted 'To' and 'From' addresses as they should appear on the envelope.

c. Give three short, sincere sentences you could include in the letter that express gratitude for specific acts of hospitality.

d. Write a polite closing paragraph (3–4 lines) promising future contact and sending regards to her family.