1. Choose a format: Pre-decide where will you write what

2. Write the salutation:  Dear .... (friend's name) OR Hello ....(friend's name) 

3. Write introduction: A 'best wishes' sentence and then the purpose of writing i.e. online classes

4. Write the body of the letter: what are online classes? Are they good? And things like that...

5. Interact: Ask your friend's opinion.  Ask 3-4 more questions on various aspects of online classes

6. Write the conclusion: Finalize your opinion about online classes in a few words.

7. Proofread: Go through your letter carefully. Did you go wrong anywhere about  online classes? Check. Correct.

8. End on  a happy note: Say, Hope to see you soon!

9. Sign the letter

Post the letter