Write the question using the supralative form of the word in italic.Example: what is/ large/ city / in your country?Your answer: What is the largest city in your country? Предложение начинаем с заглавной буквы, лишних пробелов не ставим, в конце знак вопроса.
what was/ happy day/ of your life? ("Of my life" means that some situation or some circumstance belongs to your life)или (любой из этих вариантов будет считаться верным)what was/ happy day/ in your life? ("In my life" looks at your life like it's a timeline. Each event that happened in your life is on that timeline)