在“I went to New York city"中,为什么“去”的前面不加be动词?welcome your answers,thanks for your help!

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. 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 在“I went to New York city中,为什么“去”的前面不加be动词?welcome your answers,thanks for your help! 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? 英语把句子改成一般将来时.He went to New York last yearShe went to Sydney last month.I ent to Paris the year before lastWe went toStockholm last yearThey went to Geneva the week before last.哪位学英语好得人士请在20钟捏回答 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？