英语单词的区分问题someone 、some one；anyone 、any one的区别?

牛津实用英语语法 51 someone,somebody,something,anyone,
A 用some,any和no构成的复合词都遵循上文所述规则：
Someone wants to speak to you on the phone．
有你的电话.
Someone/Somebody gave me a ticket for the pop concert．
有人给了我一张流行歌曲音乐会的门票.
No one/Nobody has ever given me a free ticket for anything．
从来没有人给过我免费的什么票.
Do you want anything from the chemist’s?
你需要在药店里买什么东西吗?
Would anyone/anybody like a drink?
谁想喝一杯吗?
注意：
I drink anything．
我喝什么都行.相当于：
I don’t mind what I drink．
我不挑喝什么.
Anyone will tell you where the house is．
谁都会告诉你那所房子在哪儿.（参见第50节C.）
B someone,somebody,anyone,anybody,no one,nobody可以有所有格形式：
Someone’s passport has been stolen．
有人的护照被偷了.
Is this somebody’s/anybody’s seat?
这座位有人坐吗?
I don’t want to waste anyone’s time．
我不想浪费任何人的时间.
C 代词和所有格形容词与someone,somebody,anyone,anybody,no one,nobody,everyone,everybody连用
所有这些词语都具有单数的含义,因此要用单数动词.因此,指代这些词的人称代词和所有格形容词按道理说也应是he/she,him/her,his/her,但在口语中复数形式更为普遍：
Has anyone left their luggage on the train?
有谁把行李丢在火车上了吗?
No one saw Tom go out,did they?
没有人看见汤姆出去,对吗?
但在指something,anything,nothing时仍然用it：
Something went wrong,didn’t it?
有什么地方出毛病了,是吗?