Написать письмо по английскому языку по правилам ЕГЭ

You have received a letter from your English-speaking pen-friend Oscar who writes

… I want to speak Japanese and I’ve joined an online language course. Do many Russian teenagers learn foreign languages online? Why or why not? What foreign languages are popular among them today? What foreign language besides English would you like to study and why
Yesterday I had my first lesson of Japanese ..
Write a letter to Oscar

In your letter
– answer his questions
– ask 3 questions about the Japanese lesson

Write 100–140 words
Remember the rules of letter writing.