Thank you for your last letters. I hope you are fine. You asked me about my school. As I know, our teachers like good students who are studying hard. I really like English, and I don't know why. I'm proud of my ability to speak one more language. However, our school has only one gymnasium, and we haven't enough time to do sports. At last, unfortunately, I did not join any school clubs. By the way, how long do you play basketball? How many players in your team? Do you enjoy it? Well, it's all about it. I look forward to hearing from you.
Summer was my favorite season. That summer I didn’t go anywhere either in June or July and stayed in the city almost all the time. I walked all day, bathed in quarries, spent time with my family and friends. There were also very vivid memories from the campaign that I went with my friends. We spent the night in tents on the shore of the quarry, baked sausages, enjoyed the night sky. We often went to Khabarovsk to our brothers, where we spent quite a lot of time together. The summer passed very quickly, but it was bright and memorable.
Правильно - Where did you see ...?
Наличие вс глагола Did (в времени - Past Simple) обязательно в общем, специальном и альтернативном вопросах.
БEЗ вс глагола можно задать только вопрос к подлежащему (он начинается с вопросительного слова WHO=КТО):
Who lived in this flat? - Кто жил в этой квартире?
или разделительный вопрос (вопрос с хвостиком): Mr. Brown lived in this flat, didn't he?