I am going to Beijing at the national holiday 为什么错了?

I am going to Beijing at the national holiday 为什么错了? 英语在线连词成句 on,the,going,holiday,I'm,to beijing,National连词成句 I am going to Beijing for a holiday.的答语 I am going to UK on holiday.The plane ___ London at nine o'c I am going to Britain on holiday.The plane ___ at nine o'clo I am going to UK on holiday.The plane ___ at nine o'clock. 用 求教几题高中英语（1）I am going to spend my holiday in Beijing,_______ I am going to Guilin during () () () holiday. I am going （to Beijing）. i am going to Beijing 时态 I am going to visit Beijing.(Beijing 划线）为什么只能用which place 提问 i am going to beijing ,与i am going to go to beijing 有什么区别