I went to New York last month 改为否定句

I went to new York city went to New York 单句改错：I went to New York. What about he? i went to new york city变成一般疑问句 I went to New York last month 改为否定句 I went to New York City.改成一般疑问句 i went to New York City on vacation. l went to new york city.对划线部分提问__he_? Last june,I went to New York for holiday那里错了？ I went to New York City on vacation 该成疑问句 I went to New York City on vacation.改否定句 they went to new york city对划线部分提问 划线部分：new york city Helen went to New York on vacation.(划线New York提问） They went to New York City改特殊疑问句 I went New York City.为什么纽约前面没有加the?而went to the beach.beach前面却加the了?为什么? lily went to new york city on holiday.对new york city 进行提问[ ] [ ] lily [ ] on holiday? went to new york city 为什么不加 the 变成 went to the new york city?两者之间有没有区别呢？went to the new york city 有没有语法上面的错误呢？ I went to New York City ( ) May 1st.括号里添什么.A.at B.in C.on D.to