Is there someone downstair?为什么用someone不用anyone?

Is there someone downstair?为什么用someone不用anyone? Is there anyone special?There is someone special.和There is a there are someone还是there is someone is there anyone else和is there someone else的区别是什么? Is it someone in your family?为什么用someone can anyone help me?不是想得到肯定回答吗?为什么不用someone Is there _____ in the room now,Lucy?A.other anyone B.someone There is always someone smarter There is always someone是什么意思 if anyone is late为什么不能是if someone is late? 用anything something anyone someone填空谢谢! someone ,everyone,anyone