I have been asking the same question for three times from yo

I have been asking the same question for three times from yo I have the same question for 英语翻译My friends have been asking me the same boring question. I have been there( )three times.括号里加for吗 i have been to the west lake three times ---1970 i have been there (for) three times.这句话中括号中的for一定要加吗? i have made the same mistake three times.mistake为什么不加s? he is always asking the same question 为什么用asking -I have already been to the Great Wall three times.-When ___ I'have been to harbin three times(画线提问） I have been to America three times 的被动语态 I have been to England three times（对划线部分提问）three times划线